Section 1: Basic Concepts & Measurement of Chemistry |
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Basic Concepts of Chemistry |
16:26 |
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Intro |
0:00 | |
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Lesson Overview |
0:07 | |
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Introduction |
0:56 | |
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| What is Chemistry? |
0:57 | |
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| What is Matter? |
1:16 | |
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Solids |
1:43 | |
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| General Characteristics |
1:44 | |
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| Particulate-level Drawing of Solids |
2:34 | |
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Liquids |
3:39 | |
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| General Characteristics of Liquids |
3:40 | |
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| Particulate-level Drawing of Liquids |
3:55 | |
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Gases |
4:23 | |
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| General Characteristics of Gases |
4:24 | |
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| Particulate-level Drawing Gases |
5:05 | |
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Classification of Matter |
5:27 | |
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| Classification of Matter |
5:26 | |
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Pure Substances |
5:54 | |
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| Pure Substances |
5:55 | |
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Mixtures |
7:06 | |
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| Definition of Mixtures |
7:07 | |
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| Homogeneous Mixtures |
7:11 | |
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| Heterogeneous Mixtures |
7:52 | |
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Physical and Chemical Changes/Properties |
8:18 | |
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| Physical Changes Retain Chemical Composition |
8:19 | |
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| Chemical Changes Alter Chemical Composition |
9:32 | |
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Physical and Chemical Changes/Properties, cont'd |
10:55 | |
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| Physical Properties |
10:56 | |
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| Chemical Properties |
11:42 | |
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Sample Problem 1: Chemical & Physical Change |
12:22 | |
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Sample Problem 2: Element, Compound, or Mixture? |
13:52 | |
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Sample Problem 3: Classify Each of the Following Properties as chemical or Physical |
15:03 | |
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Tools in Quantitative Chemistry |
29:22 |
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Intro |
0:00 | |
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Lesson Overview |
0:07 | |
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Units of Measurement |
1:23 | |
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| The International System of Units (SI): Mass, Length, and Volume |
1:39 | |
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Percent Error |
2:17 | |
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| Percent Error |
2:18 | |
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| Example: Calculate the Percent Error |
2:56 | |
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Standard Deviation |
3:48 | |
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| Standard Deviation Formula |
3:49 | |
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Standard Deviation cont'd |
4:42 | |
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| Example: Calculate Your Standard Deviation |
4:43 | |
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Precisions vs. Accuracy |
6:25 | |
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| Precision |
6:26 | |
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| Accuracy |
7:01 | |
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Significant Figures and Uncertainty |
7:50 | |
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| Consider the Following (2) Rulers |
7:51 | |
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| Consider the Following Graduated Cylinder |
11:30 | |
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Identifying Significant Figures |
12:43 | |
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| The Rules of Sig Figs Overview |
12:44 | |
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| The Rules for Sig Figs: All Nonzero Digits Are Significant |
13:21 | |
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| The Rules for Sig Figs: A Zero is Significant When It is In-Between Nonzero Digits |
13:28 | |
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| The Rules for Sig Figs: A Zero is Significant When at the End of a Decimal Number |
14:02 | |
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| The Rules for Sig Figs: A Zero is not significant When Starting a Decimal Number |
14:27 | |
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Using Sig Figs in Calculations |
15:03 | |
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| Using Sig Figs for Multiplication and Division |
15:04 | |
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| Using Sig Figs for Addition and Subtraction |
15:48 | |
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| Using Sig Figs for Mixed Operations |
16:11 | |
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Dimensional Analysis |
16:20 | |
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| Dimensional Analysis Overview |
16:21 | |
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| General Format for Dimensional Analysis |
16:39 | |
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| Example: How Many Miles are in 17 Laps? |
17:17 | |
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| Example: How Many Grams are in 1.22 Pounds? |
18:40 | |
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Dimensional Analysis cont'd |
19:43 | |
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| Example: How Much is Spent on Diapers in One Week? |
19:44 | |
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Dimensional Analysis cont'd |
21:03 | |
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| SI Prefixes |
21:04 | |
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Dimensional Analysis cont'd |
22:03 | |
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| 500 mg → ? kg |
22:04 | |
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| 34.1 cm → ? um |
24:03 | |
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Summary |
25:11 | |
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Sample Problem 1: Dimensional Analysis |
26:09 | |
Section 2: Atoms, Molecules, and Ions |
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Atoms, Molecules, and Ions |
52:18 |
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Intro |
0:00 | |
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Lesson Overview |
0:08 | |
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Introduction to Atomic Structure |
1:03 | |
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| Introduction to Atomic Structure |
1:04 | |
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| Plum Pudding Model |
1:26 | |
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Introduction to Atomic Structure Cont'd |
2:07 | |
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| John Dalton's Atomic Theory: Number 1 |
2:22 | |
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| John Dalton's Atomic Theory: Number 2 |
2:50 | |
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| John Dalton's Atomic Theory: Number 3 |
3:07 | |
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| John Dalton's Atomic Theory: Number 4 |
3:30 | |
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| John Dalton's Atomic Theory: Number 5 |
3:58 | |
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Introduction to Atomic Structure Cont'd |
5:21 | |
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| Ernest Rutherford's Gold Foil Experiment |
5:22 | |
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Introduction to Atomic Structure Cont'd |
7:42 | |
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| Implications of the Gold Foil Experiment |
7:43 | |
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| Relative Masses and Charges |
8:18 | |
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Isotopes |
9:02 | |
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| Isotopes |
9:03 | |
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Introduction to The Periodic Table |
12:17 | |
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| The Periodic Table of the Elements |
12:18 | |
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Periodic Table, cont'd |
13:56 | |
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| Metals |
13:57 | |
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| Nonmetals |
14:25 | |
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| Semimetals |
14:51 | |
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Periodic Table, cont'd |
15:57 | |
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| Group I: The Alkali Metals |
15:58 | |
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| Group II: The Alkali Earth Metals |
16:25 | |
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| Group VII: The Halogens |
16:40 | |
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| Group VIII: The Noble Gases |
17:08 | |
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Ionic Compounds: Formulas, Names, Props. |
17:35 | |
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| Common Polyatomic Ions |
17:36 | |
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| Predicting Ionic Charge for Main Group Elements |
18:52 | |
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Ionic Compounds: Formulas, Names, Props. |
20:36 | |
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| Naming Ionic Compounds: Rule 1 |
20:51 | |
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| Naming Ionic Compounds: Rule 2 |
21:22 | |
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| Naming Ionic Compounds: Rule 3 |
21:50 | |
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| Naming Ionic Compounds: Rule 4 |
22:22 | |
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Ionic Compounds: Formulas, Names, Props. |
22:50 | |
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| Naming Ionic Compounds Example: Al₂O₃ |
22:51 | |
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| Naming Ionic Compounds Example: FeCl₃ |
23:21 | |
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| Naming Ionic Compounds Example: CuI₂ 3H₂O |
24:00 | |
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| Naming Ionic Compounds Example: Barium Phosphide |
24:40 | |
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| Naming Ionic Compounds Example: Ammonium Phosphate |
25:55 | |
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Molecular Compounds: Formulas and Names |
26:42 | |
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| Molecular Compounds: Formulas and Names |
26:43 | |
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The Mole |
28:10 | |
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| The Mole is 'A Chemist's Dozen' |
28:11 | |
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| It is a Central Unit, Connecting the Following Quantities |
30:01 | |
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The Mole, cont'd |
32:07 | |
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| Atomic Masses |
32:08 | |
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| Example: How Many Moles are in 25.7 Grams of Sodium? |
32:28 | |
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| Example: How Many Atoms are in 1.2 Moles of Carbon? |
33:17 | |
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The Mole, cont'd |
34:25 | |
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| Example: What is the Molar Mass of Carbon Dioxide? |
34:26 | |
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| Example: How Many Grams are in 1.2 Moles of Carbon Dioxide? |
25:46 | |
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Percentage Composition |
36:43 | |
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| Example: How Many Grams of Carbon Contained in 65.1 Grams of Carbon Dioxide? |
36:44 | |
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Empirical and Molecular Formulas |
39:19 | |
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| Empirical Formulas |
39:20 | |
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| Empirical Formula & Elemental Analysis |
40:21 | |
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Empirical and Molecular Formulas, cont'd |
41:24 | |
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| Example: Determine Both the Empirical and Molecular Formulas - Step 1 |
41:25 | |
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| Example: Determine Both the Empirical and Molecular Formulas - Step 2 |
43:18 | |
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Summary |
46:22 | |
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Sample Problem 1: Determine the Empirical Formula of Lithium Fluoride |
47:10 | |
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Sample Problem 2: How Many Atoms of Carbon are Present in 2.67 kg of C₆H₆? |
49:21 | |
Section 3: Chemical Reactions |
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Chemical Reactions |
43:24 |
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Intro |
0:00 | |
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Lesson Overview |
0:06 | |
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The Law of Conservation of Mass and Balancing Chemical Reactions |
1:49 | |
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| The Law of Conservation of Mass |
1:50 | |
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| Balancing Chemical Reactions |
2:50 | |
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Balancing Chemical Reactions Cont'd |
3:40 | |
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| Balance: N₂ + H₂ → NH₃ |
3:41 | |
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| Balance: CH₄ + O₂ → CO₂ + H₂O |
7:20 | |
| |
Balancing Chemical Reactions Cont'd |
9:49 | |
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| Balance: C₂H₆ + O₂ → CO₂ + H₂O |
9:50 | |
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Intro to Chemical Equilibrium |
15:32 | |
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| When an Ionic Compound Full Dissociates |
15:33 | |
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| When an Ionic Compound Incompletely Dissociates |
16:14 | |
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| Dynamic Equilibrium |
17:12 | |
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Electrolytes and Nonelectrolytes |
18:03 | |
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| Electrolytes |
18:04 | |
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| Strong Electrolytes and Weak Electrolytes |
18:55 | |
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| Nonelectrolytes |
19:23 | |
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Predicting the Product(s) of an Aqueous Reaction |
20:02 | |
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| Single-replacement |
20:03 | |
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| Example: Li (s) + CuCl₂ (aq) → 2 LiCl (aq) + Cu (s) |
21:03 | |
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| Example: Cu (s) + LiCl (aq) → NR |
21:23 | |
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| Example: Zn (s) + 2HCl (aq) → ZnCl₂ (aq) + H₂ (g) |
22:32 | |
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Predicting the Product(s) of an Aqueous Reaction |
23:37 | |
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| Double-replacement |
23:38 | |
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| Net-ionic Equation |
25:29 | |
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Predicting the Product(s) of an Aqueous Reaction |
26:12 | |
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| Solubility Rules for Ionic Compounds |
26:13 | |
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Predicting the Product(s) of an Aqueous Reaction |
28:10 | |
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| Neutralization Reactions |
28:11 | |
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| Example: HCl (aq) + NaOH (aq) → ? |
28:37 | |
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| Example: H₂SO₄ (aq) + KOH (aq) → ? |
29:25 | |
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Predicting the Product(s) of an Aqueous Reaction |
30:20 | |
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| Certain Aqueous Reactions can Produce Unstable Compounds |
30:21 | |
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| Example 1 |
30:52 | |
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| Example 2 |
32:16 | |
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| Example 3 |
32:54 | |
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Summary |
33:54 | |
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Sample Problem 1 |
34:55 | |
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| ZnCO₃ (aq) + H₂SO₄ (aq) → ? |
35:09 | |
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| NH₄Br (aq) + Pb(C₂H₃O₂)₂ (aq) → ? |
36:02 | |
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| KNO₃ (aq) + CuCl₂ (aq) → ? |
37:07 | |
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| Li₂SO₄ (aq) + AgNO₃ (aq) → ? |
37:52 | |
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Sample Problem 2 |
39:09 | |
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| Question 1 |
39:10 | |
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| Question 2 |
40:36 | |
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| Question 3 |
41:47 | |
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Chemical Reactions II |
55:40 |
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Intro |
0:00 | |
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Lesson Overview |
0:10 | |
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Arrhenius Definition |
1:15 | |
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| Arrhenius Acids |
1:16 | |
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| Arrhenius Bases |
3:20 | |
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The Bronsted-Lowry Definition |
4:48 | |
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| Acids Dissolve In Water and Donate a Proton to Water: Example 1 |
4:49 | |
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| Acids Dissolve In Water and Donate a Proton to Water: Example 2 |
6:54 | |
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| Monoprotic Acids & Polyprotic Acids |
7:58 | |
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| Strong Acids |
11:30 | |
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| Bases Dissolve In Water and Accept a Proton From Water |
12:41 | |
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| Strong Bases |
16:36 | |
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The Autoionization of Water |
17:42 | |
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| Amphiprotic |
17:43 | |
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| Water Reacts With Itself |
18:24 | |
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Oxides of Metals and Nonmetals |
20:08 | |
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| Oxides of Metals and Nonmetals Overview |
20:09 | |
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| Oxides of Nonmetals: Acidic Oxides |
21:23 | |
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| Oxides of Metals: Basic Oxides |
24:08 | |
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Oxidation-Reduction (Redox) Reactions |
25:34 | |
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| Redox Reaction Overview |
25:35 | |
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| Oxidizing and Reducing Agents |
27:02 | |
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| Redox Reaction: Transfer of Electrons |
27:54 | |
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Oxidation-Reduction Reactions Cont'd |
29:55 | |
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| Oxidation Number Overview |
29:56 | |
| |
| Oxidation Number of Homonuclear Species |
31:17 | |
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| Oxidation Number of Monatomic Ions |
32:58 | |
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| Oxidation Number of Fluorine |
33:27 | |
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| Oxidation Number of Oxygen |
34:00 | |
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| Oxidation Number of Chlorine, Bromine, and Iodine |
35:07 | |
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| Oxidation Number of Hydrogen |
35:30 | |
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| Net Sum of All Oxidation Numbers In a Compound |
36:21 | |
| |
Oxidation-Reduction Reactions Cont'd |
38:19 | |
| |
| Let's Practice Assigning Oxidation Number |
38:20 | |
| |
| Now Let's Apply This to a Chemical Reaction |
41:07 | |
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Summary |
44:19 | |
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Sample Problems |
45:29 | |
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| Sample Problem 1 |
45:30 | |
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| Sample Problem 2: Determine the Oxidizing and Reducing Agents |
48:48 | |
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| Sample Problem 3: Determine the Oxidizing and Reducing Agents |
50:43 | |
Section 4: Stoichiometry |
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Stoichiometry I |
42:10 |
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Intro |
0:00 | |
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Lesson Overview |
0:23 | |
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Mole to Mole Ratios |
1:32 | |
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| Example 1: In 1 Mole of H₂O, How Many Moles Are There of Each Element? |
1:53 | |
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| Example 2: In 2.6 Moles of Water, How Many Moles Are There of Each Element? |
2:24 | |
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Mole to Mole Ratios Cont'd |
5:13 | |
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| Balanced Chemical Reaction |
5:14 | |
| |
Mole to Mole Ratios Cont'd |
7:25 | |
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| Example 3: How Many Moles of Ammonia Can Form If you Have 3.1 Moles of H₂? |
7:26 | |
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| Example 4: How Many Moles of Hydrogen Gas Are Required to React With 6.4 Moles of Nitrogen Gas? |
9:08 | |
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Mass to mass Conversion |
11:06 | |
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| Mass to mass Conversion |
11:07 | |
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| Example 5: How Many Grams of Ammonia Can Form If You Have 3.1 Grams of H₂? |
12:37 | |
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| Example 6: How Many Grams of Hydrogen Gas Are Required to React With 6.4 Grams of Nitrogen Gas? |
15:34 | |
| |
| Example 7: How Man Milligrams of Ammonia Can Form If You Have 1.2 kg of H₂? |
17:29 | |
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Limiting Reactants, Percent Yields |
20:42 | |
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| Limiting Reactants, Percent Yields |
20:43 | |
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| Example 8: How Many Grams of Ammonia Can Form If You Have 3.1 Grams of H₂ and 3.1 Grams of N₂ |
22:25 | |
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| Percent Yield |
25:30 | |
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| Example 9: How Many Grams of The Excess Reactant Remains? |
26:37 | |
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Summary |
29:34 | |
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Sample Problem 1: How Many Grams of Carbon Are In 2.2 Kilograms of Carbon Dioxide? |
30:47 | |
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Sample Problem 2: How Many Milligrams of Carbon Dioxide Can Form From 23.1 Kg of CH₄(g)? |
33:06 | |
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Sample Problem 3: Part 1 |
36:10 | |
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Sample Problem 3: Part 2 - What Amount Of The Excess Reactant Will Remain? |
40:53 | |
|
Stoichiometry II |
42:38 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:10 | |
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Molarity |
1:14 | |
| |
| Solute and Solvent |
1:15 | |
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| Molarity |
2:01 | |
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Molarity Cont'd |
2:59 | |
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| Example 1: How Many Grams of KBr are Needed to Make 350 mL of a 0.67 M KBr Solution? |
3:00 | |
| |
| Example 2: How Many Moles of KBr are in 350 mL of a 0.67 M KBr Solution? |
5:44 | |
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| Example 3: What Volume of a 0.67 M KBr Solution Contains 250 mg of KBr? |
7:46 | |
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Dilutions |
10:01 | |
| |
| Dilution: M₁V₂=M₁V₂ |
10:02 | |
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| Example 5: Explain How to Make 250 mL of a 0.67 M KBr Solution Starting From a 1.2M Stock Solution |
12:04 | |
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Stoichiometry and Double-Displacement Precipitation Reactions |
14:41 | |
| |
| Example 6: How Many grams of PbCl₂ Can Form From 250 mL of 0.32 M NaCl? |
15:38 | |
| |
Stoichiometry and Double-Displacement Precipitation Reactions |
18:05 | |
| |
| Example 7: How Many grams of PbCl₂ Can Form When 250 mL of 0.32 M NaCl and 150 mL of 0.45 Pb(NO₃)₂ Mix? |
18:06 | |
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Stoichiometry and Neutralization Reactions |
21:01 | |
| |
| Example 8: How Many Grams of NaOh are Required to Neutralize 4.5 Grams of HCl? |
21:02 | |
| |
Stoichiometry and Neutralization Reactions |
23:03 | |
| |
| Example 9: How Many mL of 0.45 M NaOH are Required to Neutralize 250 mL of 0.89 M HCl? |
23:04 | |
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Stoichiometry and Acid-Base Standardization |
25:28 | |
| |
| Introduction to Titration & Standardization |
25:30 | |
| |
| Acid-Base Titration |
26:12 | |
| |
| The Analyte & Titrant |
26:24 | |
| |
The Experimental Setup |
26:49 | |
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| The Experimental Setup |
26:50 | |
| |
Stoichiometry and Acid-Base Standardization |
28:38 | |
| |
| Example 9: Determine the Concentration of the Analyte |
28:39 | |
| |
Summary |
32:46 | |
| |
Sample Problem 1: Stoichiometry & Neutralization |
35:24 | |
| |
Sample Problem 2: Stoichiometry |
37:50 | |
Section 5: Thermochemistry |
|
Energy & Chemical Reactions |
55:28 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:14 | |
| |
Introduction |
1:22 | |
| |
| Recall: Chemistry |
1:23 | |
| |
| Energy Can Be Expressed In Different Units |
1:57 | |
| |
The First Law of Thermodynamics |
2:43 | |
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| Internal Energy |
2:44 | |
| |
The First Law of Thermodynamics Cont'd |
6:14 | |
| |
| Ways to Transfer Internal Energy |
6:15 | |
| |
| Work Energy |
8:13 | |
| |
| Heat Energy |
8:34 | |
| |
| ∆U = q + w |
8:44 | |
| |
Calculating ∆U, Q, and W |
8:58 | |
| |
| Changes In Both Volume and Temperature of a System |
8:59 | |
| |
Calculating ∆U, Q, and W Cont'd |
11:01 | |
| |
| The Work Equation |
11:02 | |
| |
| Example 1: Calculate ∆U For The Burning Fuel |
11:45 | |
| |
Calculating ∆U, Q, and W Cont'd |
14:09 | |
| |
| The Heat Equation |
14:10 | |
| |
Calculating ∆U, Q, and W Cont'd |
16:03 | |
| |
| Example 2: Calculate The Final Temperature |
16:04 | |
| |
Constant-Volume Calorimetry |
18:05 | |
| |
| Bomb Calorimeter |
18:06 | |
| |
| The Effect of Constant Volume On The Equation For Internal Energy |
22:11 | |
| |
| Example 3: Calculate ∆U |
23:12 | |
| |
Constant-Pressure Conditions |
26:05 | |
| |
| Constant-Pressure Conditions |
26:06 | |
| |
Calculating Enthalpy: Phase Changes |
27:29 | |
| |
| Melting, Vaporization, and Sublimation |
27:30 | |
| |
| Freezing, Condensation and Deposition |
28:25 | |
| |
| Enthalpy Values For Phase Changes |
28:40 | |
| |
| Example 4: How Much Energy In The Form of heat is Required to Melt 1.36 Grams of Ice? |
29:40 | |
| |
Calculating Enthalpy: Heats of Reaction |
31:22 | |
| |
| Example 5: Calculate The Heat In kJ Associated With The Complete Reaction of 155 g NH₃ |
31:23 | |
| |
Using Standard Enthalpies of Formation |
33:53 | |
| |
| Standard Enthalpies of Formation |
33:54 | |
| |
Using Standard Enthalpies of Formation |
36:12 | |
| |
| Example 6: Calculate The Standard Enthalpies of Formation For The Following Reaction |
36:13 | |
| |
Enthalpy From a Series of Reactions |
39:58 | |
| |
| Hess's Law |
39:59 | |
| |
Coffee-Cup Calorimetry |
42:43 | |
| |
| Coffee-Cup Calorimetry |
42:44 | |
| |
| Example 7: Calculate ∆H° of Reaction |
45:10 | |
| |
Summary |
47:12 | |
| |
Sample Problem 1 |
48:58 | |
| |
Sample Problem 2 |
51:24 | |
Section 6: Quantum Theory of Atoms |
|
Structure of Atoms |
42:33 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:07 | |
| |
Introduction |
1:01 | |
| |
| Rutherford's Gold Foil Experiment |
1:02 | |
| |
Electromagnetic Radiation |
2:31 | |
| |
| Radiation |
2:32 | |
| |
| Three Parameters: Energy, Frequency, and Wavelength |
2:52 | |
| |
Electromagnetic Radiation |
5:18 | |
| |
| The Electromagnetic Spectrum |
5:19 | |
| |
Atomic Spectroscopy and The Bohr Model |
7:46 | |
| |
| Wavelengths of Light |
7:47 | |
| |
Atomic Spectroscopy Cont'd |
9:45 | |
| |
| The Bohr Model |
9:46 | |
| |
Atomic Spectroscopy Cont'd |
12:21 | |
| |
| The Balmer Series |
12:22 | |
| |
| Rydberg Equation For Predicting The Wavelengths of Light |
13:04 | |
| |
The Wave Nature of Matter |
15:11 | |
| |
| The Wave Nature of Matter |
15:12 | |
| |
The Wave Nature of Matter |
19:10 | |
| |
| New School of Thought |
19:11 | |
| |
| Einstein: Energy |
19:49 | |
| |
| Hertz and Planck: Photoelectric Effect |
20:16 | |
| |
| de Broglie: Wavelength of a Moving Particle |
21:14 | |
| |
Quantum Mechanics and The Atom |
22:15 | |
| |
| Heisenberg: Uncertainty Principle |
22:16 | |
| |
| Schrodinger: Wavefunctions |
23:08 | |
| |
Quantum Mechanics and The Atom |
24:02 | |
| |
| Principle Quantum Number |
24:03 | |
| |
| Angular Momentum Quantum Number |
25:06 | |
| |
| Magnetic Quantum Number |
26:27 | |
| |
| Spin Quantum Number |
28:42 | |
| |
The Shapes of Atomic Orbitals |
29:15 | |
| |
| Radial Wave Function |
29:16 | |
| |
| Probability Distribution Function |
32:08 | |
| |
The Shapes of Atomic Orbitals |
34:02 | |
| |
| 3-Dimensional Space of Wavefunctions |
34:03 | |
| |
Summary |
35:57 | |
| |
Sample Problem 1 |
37:07 | |
| |
Sample Problem 2 |
40:23 | |
Section 7: Electron Configurations and Periodicity |
|
Periodic Trends |
38:50 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:09 | |
| |
Introduction |
0:36 | |
| |
Electron Configuration of Atoms |
1:33 | |
| |
| Electron Configuration & Atom's Electrons |
1:34 | |
| |
| Electron Configuration Format |
1:56 | |
| |
Electron Configuration of Atoms Cont'd |
3:01 | |
| |
| Aufbau Principle |
3:02 | |
| |
Electron Configuration of Atoms Cont'd |
6:53 | |
| |
| Electron Configuration Format 1: Li, O, and Cl |
6:56 | |
| |
| Electron Configuration Format 2: Li, O, and Cl |
9:11 | |
| |
Electron Configuration of Atoms Cont'd |
12:48 | |
| |
| Orbital Box Diagrams |
12:49 | |
| |
| Pauli Exclusion Principle |
13:11 | |
| |
| Hund's Rule |
13:36 | |
| |
Electron Configuration of Atoms Cont'd |
17:35 | |
| |
| Exceptions to The Aufbau Principle: Cr |
17:36 | |
| |
| Exceptions to The Aufbau Principle: Cu |
18:15 | |
| |
Electron Configuration of Atoms Cont'd |
20:22 | |
| |
| Electron Configuration of Monatomic Ions: Al |
20:23 | |
| |
| Electron Configuration of Monatomic Ions: Al³⁺ |
20:46 | |
| |
| Electron Configuration of Monatomic Ions: Cl |
21:57 | |
| |
| Electron Configuration of Monatomic Ions: Cl¹⁻ |
22:09 | |
| |
Electron Configuration Cont'd |
24:31 | |
| |
| Paramagnetism |
24:32 | |
| |
| Diamagnetism |
25:00 | |
| |
Atomic Radii |
26:08 | |
| |
| Atomic Radii |
26:09 | |
| |
| In a Column of the Periodic Table |
26:25 | |
| |
| In a Row of the Periodic Table |
26:46 | |
| |
Ionic Radii |
27:30 | |
| |
| Ionic Radii |
27:31 | |
| |
| Anions |
27:42 | |
| |
| Cations |
27:57 | |
| |
| Isoelectronic Species |
28:12 | |
| |
Ionization Energy |
29:00 | |
| |
| Ionization Energy |
29:01 | |
| |
Electron Affinity |
31:37 | |
| |
| Electron Affinity |
31:37 | |
| |
Summary |
33:43 | |
| |
Sample Problem 1: Ground State Configuration and Orbital Box Diagram |
34:21 | |
| |
| Fe |
34:48 | |
| |
| P |
35:32 | |
| |
Sample Problem 2 |
36:38 | |
| |
| Which Has The Larger Ionization Energy: Na or Li? |
36:39 | |
| |
| Which Has The Larger Atomic Size: O or N ? |
37:23 | |
| |
| Which Has The Larger Atomic Size: O²⁻ or N³⁻ ? |
38:00 | |
Section 8: Molecular Geometry & Bonding Theory |
|
Bonding & Molecular Structure |
52:39 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:08 | |
| |
Introduction |
1:10 | |
| |
Types of Chemical Bonds |
1:53 | |
| |
| Ionic Bond |
1:54 | |
| |
| Molecular Bond |
2:42 | |
| |
Electronegativity and Bond Polarity |
3:26 | |
| |
| Electronegativity (EN) |
3:27 | |
| |
| Periodic Trend |
4:36 | |
| |
Electronegativity and Bond Polarity Cont'd |
6:04 | |
| |
| Bond Polarity: Polar Covalent Bond |
6:05 | |
| |
| Bond Polarity: Nonpolar Covalent Bond |
8:53 | |
| |
Lewis Electron Dot Structure of Atoms |
9:48 | |
| |
| Lewis Electron Dot Structure of Atoms |
9:49 | |
| |
Lewis Structures of Polyatomic Species |
12:51 | |
| |
| Single Bonds |
12:52 | |
| |
| Double Bonds |
13:28 | |
| |
| Nonbonding Electrons |
13:59 | |
| |
Lewis Structures of Polyatomic Species Cont'd |
14:45 | |
| |
| Drawing Lewis Structures: Step 1 |
14:48 | |
| |
| Drawing Lewis Structures: Step 2 |
15:16 | |
| |
| Drawing Lewis Structures: Step 3 |
15:52 | |
| |
| Drawing Lewis Structures: Step 4 |
17:31 | |
| |
| Drawing Lewis Structures: Step 5 |
19:08 | |
| |
| Drawing Lewis Structure Example: Carbonate |
19:33 | |
| |
Resonance and Formal Charges (FC) |
24:06 | |
| |
| Resonance Structures |
24:07 | |
| |
| Formal Charge |
25:20 | |
| |
Resonance and Formal Charges Cont'd |
27:46 | |
| |
| More On Formal Charge |
27:47 | |
| |
Resonance and Formal Charges Cont'd |
28:21 | |
| |
| Good Resonance Structures |
28:22 | |
| |
VSEPR Theory |
31:08 | |
| |
| VSEPR Theory Continue |
31:09 | |
| |
VSEPR Theory Cont'd |
32:53 | |
| |
| VSEPR Geometries |
32:54 | |
| |
| Steric Number |
33:04 | |
| |
| Basic Geometry |
33:50 | |
| |
| Molecular Geometry |
35:50 | |
| |
Molecular Polarity |
37:51 | |
| |
| Steps In Determining Molecular Polarity |
37:52 | |
| |
| Example 1: Polar |
38:47 | |
| |
| Example 2: Nonpolar |
39:10 | |
| |
| Example 3: Polar |
39:36 | |
| |
| Example 4: Polar |
40:08 | |
| |
Bond Properties: Order, Length, and Energy |
40:38 | |
| |
| Bond Order |
40:39 | |
| |
| Bond Length |
41:21 | |
| |
| Bond Energy |
41:55 | |
| |
Summary |
43:09 | |
| |
Sample Problem 1 |
43:42 | |
| |
| XeO₃ |
44:03 | |
| |
| I₃⁻ |
47:02 | |
| |
| SF₅ |
49:16 | |
|
Advanced Bonding Theories |
1:11:41 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:09 | |
| |
Introduction |
0:38 | |
| |
Valence Bond Theory |
3:07 | |
| |
| Valence Bond Theory |
3:08 | |
| |
| spᶟ Hybridized Carbon Atom |
4:19 | |
| |
Valence Bond Theory Cont'd |
6:24 | |
| |
| spᶟ Hybridized |
6:25 | |
| |
| Hybrid Orbitals For Water |
7:26 | |
| |
Valence Bond Theory Cont'd (spᶟ) |
11:53 | |
| |
| Example 1: NH₃ |
11:54 | |
| |
Valence Bond Theory Cont'd (sp²) |
14:48 | |
| |
| sp² Hybridization |
14:49 | |
| |
| Example 2: BF₃ |
16:44 | |
| |
Valence Bond Theory Cont'd (sp) |
22:44 | |
| |
| sp Hybridization |
22:46 | |
| |
| Example 3: HCN |
23:38 | |
| |
Valence Bond Theory Cont'd (sp³d and sp³d²) |
27:36 | |
| |
| Valence Bond Theory: sp³d and sp³d² |
27:37 | |
| |
Molecular Orbital Theory |
29:10 | |
| |
| Valence Bond Theory Doesn't Always Account For a Molecule's Magnetic Behavior |
29:11 | |
| |
Molecular Orbital Theory Cont'd |
30:37 | |
| |
| Molecular Orbital Theory |
30:38 | |
| |
| Wavefunctions |
31:04 | |
| |
| How s-orbitals Can Interact |
32:23 | |
| |
| Bonding Nature of p-orbitals: Head-on |
35:34 | |
| |
| Bonding Nature of p-orbitals: Parallel |
39:04 | |
| |
| Interaction Between s and p-orbital |
40:45 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomics: H₂ |
42:21 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomics: He₂ |
45:23 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomic: Li₂ |
46:39 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomic: Li₂⁺ |
47:42 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomic: B₂ |
48:57 | |
| |
| Molecular Orbital Diagram For Homonuclear Diatomic: N₂ |
54:04 | |
| |
| Molecular Orbital Diagram: Molecular Oxygen |
55:57 | |
| |
| Molecular Orbital Diagram For Heteronuclear Diatomics: Hydrochloric Acid |
62:16 | |
| |
Sample Problem 1: Determine the Atomic Hybridization |
67:20 | |
| |
| XeO₃ |
67:21 | |
| |
| SF₆ |
67:49 | |
| |
| I₃⁻ |
68:20 | |
| |
Sample Problem 2 |
69:04 | |
Section 9: Gases, Solids, & Liquids |
|
Gases |
35:06 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:07 | |
| |
The Kinetic Molecular Theory of Gases |
1:23 | |
| |
| The Kinetic Molecular Theory of Gases |
1:24 | |
| |
Parameters To Characterize Gases |
3:35 | |
| |
| Parameters To Characterize Gases: Pressure |
3:37 | |
| |
| Interpreting Pressure On a Particulate Level |
4:43 | |
| |
Parameters Cont'd |
6:08 | |
| |
| Units For Expressing Pressure: Psi, Pascal |
6:19 | |
| |
| Units For Expressing Pressure: mm Hg |
6:42 | |
| |
| Units For Expressing Pressure: atm |
6:58 | |
| |
| Units For Expressing Pressure: torr |
7:24 | |
| |
Parameters Cont'd |
8:09 | |
| |
| Parameters To Characterize Gases: Volume |
8:10 | |
| |
| Common Units of Volume |
9:00 | |
| |
Parameters Cont'd |
9:11 | |
| |
| Parameters To Characterize Gases: Temperature |
9:12 | |
| |
| Particulate Level |
9:36 | |
| |
| Parameters To Characterize Gases: Moles |
10:24 | |
| |
The Simple Gas Laws |
10:43 | |
| |
| Gas Laws Are Only Valid For
|
10:44 | |
| |
| Charles' Law |
11:24 | |
| |
The Simple Gas Laws |
13:13 | |
| |
| Boyle's Law |
13:14 | |
| |
The Simple Gas Laws |
15:28 | |
| |
| Gay-Lussac's Law |
15:29 | |
| |
The Simple Gas Laws |
17:11 | |
| |
| Avogadro's Law |
17:12 | |
| |
The Ideal Gas Law |
18:43 | |
| |
| The Ideal Gas Law: PV = nRT |
18:44 | |
| |
Applications of the Ideal Gas Law |
20:12 | |
| |
| Standard Temperature and Pressure for Gases |
20:13 | |
| |
Applications of the Ideal Gas Law |
21:43 | |
| |
| Ideal Gas Law & Gas Density |
21:44 | |
| |
Gas Pressures and Partial Pressures |
23:18 | |
| |
| Dalton's Law of Partial Pressures |
23:19 | |
| |
Gas Stoichiometry |
24:15 | |
| |
| Stoichiometry Problems Involving Gases |
24:16 | |
| |
| Using The Ideal Gas Law to Get to Moles |
25:16 | |
| |
| Using Molar Volume to Get to Moles |
25:39 | |
| |
Gas Stoichiometry Cont'd |
26:03 | |
| |
| Example 1: How Many Liters of O₂ at STP are Needed to Form 10.5 g of Water Vapor? |
26:04 | |
| |
Summary |
28:33 | |
| |
Sample Problem 1: Calculate the Molar Mass of the Gas |
29:28 | |
| |
Sample Problem 2: What Mass of Ag₂O is Required to Form 3888 mL of O₂ Gas When Measured at 734 mm Hg and 25°C? |
31:59 | |
|
Intermolecular Forces & Liquids |
33:47 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:10 | |
| |
Introduction |
0:46 | |
| |
| Intermolecular Forces (IMF) |
0:47 | |
| |
Intermolecular Forces of Polar Molecules |
1:32 | |
| |
| Ion-dipole Forces |
1:33 | |
| |
| Example: Salt Dissolved in Water |
1:50 | |
| |
| Coulomb's Law & the Force of Attraction Between Ions and/or Dipoles |
3:06 | |
| |
IMF of Polar Molecules cont'd |
4:36 | |
| |
| Enthalpy of Solvation or Enthalpy of Hydration |
4:37 | |
| |
IMF of Polar Molecules cont'd |
6:01 | |
| |
| Dipole-dipole Forces |
6:02 | |
| |
IMF of Polar Molecules cont'd |
7:22 | |
| |
| Hydrogen Bonding |
7:23 | |
| |
| Example: Hydrogen Bonding of Water |
8:06 | |
| |
IMF of Nonpolar Molecules |
9:37 | |
| |
| Dipole-induced Dipole Attraction |
9:38 | |
| |
IMF of Nonpolar Molecules cont'd |
11:34 | |
| |
| Induced Dipole Attraction, London Dispersion Forces, or Vand der Waals Forces |
11:35 | |
| |
| Polarizability |
13:46 | |
| |
IMF of Nonpolar Molecules cont'd |
14:26 | |
| |
| Intermolecular Forces (IMF) and Polarizability |
14:31 | |
| |
Properties of Liquids |
16:48 | |
| |
| Standard Molar Enthalpy of Vaporization |
16:49 | |
| |
| Trends in Boiling Points of Representative Liquids: H₂O vs. H₂S |
17:43 | |
| |
Properties of Liquids cont'd |
18:36 | |
| |
| Aliphatic Hydrocarbons |
18:37 | |
| |
| Branched Hydrocarbons |
20:52 | |
| |
Properties of Liquids cont'd |
22:10 | |
| |
| Vapor Pressure |
22:11 | |
| |
| The Clausius-Clapeyron Equation |
24:30 | |
| |
Properties of Liquids cont'd |
25:52 | |
| |
| Boiling Point |
25:53 | |
| |
Properties of Liquids cont'd |
27:07 | |
| |
| Surface Tension |
27:08 | |
| |
| Viscosity |
28:06 | |
| |
Summary |
29:04 | |
| |
Sample Problem 1: Determine Which of the Following Liquids Will Have the Lower Vapor Pressure |
30:21 | |
| |
Sample Problem 2: Determine Which of the Following Liquids Will Have the Largest Standard Molar Enthalpy of Vaporization |
31:37 | |
|
The Chemistry of Solids |
25:13 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:07 | |
| |
Introduction |
0:46 | |
| |
| General Characteristics |
0:47 | |
| |
| Particulate-level Drawing |
1:09 | |
| |
The Basic Structure of Solids: Crystal Lattices |
1:37 | |
| |
| The Unit Cell Defined |
1:38 | |
| |
| Primitive Cubic |
2:50 | |
| |
Crystal Lattices cont'd |
3:58 | |
| |
| Body-centered Cubic |
3:59 | |
| |
| Face-centered Cubic |
5:02 | |
| |
Lattice Enthalpy and Trends |
6:27 | |
| |
| Introduction to Lattice Enthalpy |
6:28 | |
| |
| Equation to Calculate Lattice Enthalpy |
7:21 | |
| |
Different Types of Crystalline Solids |
9:35 | |
| |
| Molecular Solids |
9:36 | |
| |
| Network Solids |
10:25 | |
| |
Phase Changes Involving Solids |
11:03 | |
| |
| Melting & Thermodynamic Value |
11:04 | |
| |
| Freezing & Thermodynamic Value |
11:49 | |
| |
Phase Changes cont'd |
12:40 | |
| |
| Sublimation & Thermodynamic Value |
12:41 | |
| |
| Depositions & Thermodynamic Value |
13:13 | |
| |
Phase Diagrams |
13:40 | |
| |
| Introduction to Phase Diagrams |
13:41 | |
| |
| Phase Diagram of H₂O: Melting Point |
14:12 | |
| |
| Phase Diagram of H₂O: Normal Boiling Point |
14:50 | |
| |
| Phase Diagram of H₂O: Sublimation Point |
15:02 | |
| |
| Phase Diagram of H₂O: Point C ( Supercritical Point) |
15:32 | |
| |
Phase Diagrams cont'd |
16:31 | |
| |
| Phase Diagram of Dry Ice |
16:32 | |
| |
Summary |
18:15 | |
| |
Sample Problem 1, Part A: Of the Group I Fluorides, Which Should Have the Highest Lattice Enthalpy? |
19:01 | |
| |
Sample Problem 1, Part B: Of the Lithium Halides, Which Should Have the Lowest Lattice Enthalpy? |
19:54 | |
| |
Sample Problem 2: How Many Joules of Energy is Required to Melt 546 mg of Ice at Standard Pressure? |
20:55 | |
| |
Sample Problem 3: Phase Diagram of Helium |
22:42 | |
Section 10: Solutions, Rates of Reaction, & Equilibrium |
|
Solutions & Their Behavior |
38:06 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:10 | |
| |
Units of Concentration |
1:40 | |
| |
| Molarity |
1:41 | |
| |
| Molality |
3:30 | |
| |
| Weight Percent |
4:26 | |
| |
| ppm |
5:16 | |
| |
Like Dissolves Like |
6:28 | |
| |
| Like Dissolves Like |
6:29 | |
| |
Factors Affecting Solubility |
9:35 | |
| |
| The Effect of Pressure: Henry's Law |
9:36 | |
| |
| The Effect of Temperature on Gas Solubility |
12:16 | |
| |
| The Effect of Temperature on Solid Solubility |
14:28 | |
| |
Colligative Properties |
16:48 | |
| |
| Colligative Properties |
16:49 | |
| |
| Changes in Vapor Pressure: Raoult's Law |
17:19 | |
| |
Colligative Properties cont'd |
19:53 | |
| |
| Boiling Point Elevation and Freezing Point Depression |
19:54 | |
| |
Colligative Properties cont'd |
26:13 | |
| |
| Definition of Osmosis |
26:14 | |
| |
| Osmotic Pressure Example |
27:11 | |
| |
Summary |
31:11 | |
| |
Sample Problem 1: Calculating Vapor Pressure |
32:53 | |
| |
Sample Problem 2: Calculating Molality |
36:29 | |
|
Chemical Kinetics |
37:45 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:06 | |
| |
Introduction |
1:09 | |
| |
| Chemical Kinetics and the Rate of a Reaction |
1:10 | |
| |
| Factors Influencing Rate |
1:19 | |
| |
Introduction cont'd |
2:27 | |
| |
| How a Reaction Progresses Through Time |
2:28 | |
| |
| Rate of Change Equation |
6:02 | |
| |
Rate Laws |
7:06 | |
| |
| Definition of Rate Laws |
7:07 | |
| |
| General Form of Rate Laws |
7:37 | |
| |
Rate Laws cont'd |
11:07 | |
| |
| Rate Orders With Respect to Reactant and Concentration |
11:08 | |
| |
Methods of Initial Rates |
13:38 | |
| |
| Methods of Initial Rates |
13:39 | |
| |
Integrated Rate Laws |
17:57 | |
| |
| Integrated Rate Laws |
17:58 | |
| |
| Graphically Determine the Rate Constant k |
18:52 | |
| |
Reaction Mechanisms |
21:05 | |
| |
| Step 1: Reversible |
21:18 | |
| |
| Step 2: Rate-limiting Step |
21:44 | |
| |
| Rate Law for the Reaction |
23:28 | |
| |
Reaction Rates and Temperatures |
26:16 | |
| |
| Reaction Rates and Temperatures |
26:17 | |
| |
| The Arrhenius Equation |
29:06 | |
| |
Catalysis |
30:31 | |
| |
| Catalyst |
30:32 | |
| |
Summary |
32:02 | |
| |
Sample Problem 1: Calculate the Rate Constant and the Time Required for the Reaction to be Completed |
32:54 | |
| |
Sample Problem 2: Calculate the Energy of Activation and the Order of the Reaction |
35:24 | |
|
Principles of Chemical Equilibrium |
34:09 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:08 | |
| |
Introduction |
1:02 | |
| |
The Equilibrium Constant |
3:08 | |
| |
| The Equilibrium Constant |
3:09 | |
| |
The Equilibrium Constant cont'd |
5:50 | |
| |
| The Equilibrium Concentration and Constant for Solutions |
5:51 | |
| |
| The Equilibrium Partial Pressure and Constant for Gases |
7:01 | |
| |
| Relationship of Kc and Kp |
7:30 | |
| |
Heterogeneous Equilibria |
8:23 | |
| |
| Heterogeneous Equilibria |
8:24 | |
| |
Manipulating K |
9:57 | |
| |
| First Way of Manipulating K |
9:58 | |
| |
| Second Way of Manipulating K |
11:48 | |
| |
Manipulating K cont'd |
12:31 | |
| |
| Third Way of Manipulating K |
12:32 | |
| |
The Reaction Quotient Q |
14:42 | |
| |
| The Reaction Quotient Q |
14:43 | |
| |
| Q > K |
16:16 | |
| |
| Q < K |
16:30 | |
| |
| Q = K |
16:43 | |
| |
Le Chatlier's Principle |
17:32 | |
| |
| Restoring Equilibrium When It is Disturbed |
17:33 | |
| |
| Disturbing a Chemical System at Equilibrium |
18:35 | |
| |
Problem-Solving with ICE Tables |
19:05 | |
| |
| Determining a Reaction's Equilibrium Constant With ICE Table |
19:06 | |
| |
Problem-Solving with ICE Tables cont'd |
21:03 | |
| |
| Example 1: Calculate O₂(g) at Equilibrium |
21:04 | |
| |
Problem-Solving with ICE Tables cont'd |
22:53 | |
| |
| Example 2: Calculate the Equilibrium Constant |
22:54 | |
| |
Summary |
25:24 | |
| |
Sample Problem 1: Calculate the Equilibrium Constant |
27:59 | |
| |
Sample Problem 2: Calculate The Equilibrium Concentration |
30:30 | |
Section 11: Acids & Bases Chemistry |
|
Acid-Base Chemistry |
43:44 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:06 | |
| |
Introduction |
0:55 | |
| |
| Bronsted-Lowry Acid & Bronsted -Lowry Base |
0:56 | |
| |
| Water is an Amphiprotic Molecule |
2:40 | |
| |
| Water Reacting With Itself |
2:58 | |
| |
Introduction cont'd |
4:04 | |
| |
| Strong Acids |
4:05 | |
| |
| Strong Bases |
5:18 | |
| |
Introduction cont'd |
6:16 | |
| |
| Weak Acids and Bases |
6:17 | |
| |
Quantifying Acid-Base Strength |
7:35 | |
| |
| The pH Scale |
7:36 | |
| |
Quantifying Acid-Base Strength cont'd |
9:55 | |
| |
| The Acid-ionization Constant Ka and pKa |
9:56 | |
| |
Quantifying Acid-Base Strength cont'd |
12:13 | |
| |
| Example: Calculate the pH of a 1.2M Solution of Acetic Acid |
12:14 | |
| |
Quantifying Acid-Base Strength |
15:06 | |
| |
| Calculating the pH of Weak Base Solutions |
15:07 | |
| |
Writing Out Acid-Base Equilibria |
17:45 | |
| |
| Writing Out Acid-Base Equilibria |
17:46 | |
| |
Writing Out Acid-Base Equilibria cont'd |
19:47 | |
| |
| Consider the Following Equilibrium |
19:48 | |
| |
| Conjugate Base and Conjugate Acid |
21:18 | |
| |
Salts Solutions |
22:00 | |
| |
| Salts That Produce Acidic Aqueous Solutions |
22:01 | |
| |
| Salts That Produce Basic Aqueous Solutions |
23:15 | |
| |
| Neutral Salt Solutions |
24:05 | |
| |
Diprotic and Polyprotic Acids |
24:44 | |
| |
| Example: Calculate the pH of a 1.2 M Solution of H₂SO₃ |
24:43 | |
| |
Diprotic and Polyprotic Acids cont'd |
27:18 | |
| |
| Calculate the pH of a 1.2 M Solution of Na₂SO₃ |
27:19 | |
| |
Lewis Acids and Bases |
29:13 | |
| |
| Lewis Acids |
29:14 | |
| |
| Lewis Bases |
30:10 | |
| |
| Example: Lewis Acids and Bases |
31:04 | |
| |
Molecular Structure and Acidity |
32:03 | |
| |
| The Effect of Charge |
32:04 | |
| |
| Within a Period/Row |
33:07 | |
| |
Molecular Structure and Acidity cont'd |
34:17 | |
| |
| Within a Group/Column |
34:18 | |
| |
| Oxoacids |
35:58 | |
| |
Molecular Structure and Acidity cont'd |
37:54 | |
| |
| Carboxylic Acids |
37:55 | |
| |
| Hydrated Metal Cations |
39:23 | |
| |
Summary |
40:39 | |
| |
Sample Problem 1: Calculate the pH of a 1.2 M Solution of NH₃ |
41:20 | |
| |
Sample Problem 2: Predict If The Following Slat Solutions are Acidic, Basic, or Neutral |
42:37 | |
|
Applications of Aqueous Equilibria |
55:26 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:07 | |
| |
Calculating pH of an Acid-Base Mixture |
0:53 | |
| |
| Equilibria Involving Direct Reaction With Water |
0:54 | |
| |
| When a Bronsted-Lowry Acid and Base React |
1:12 | |
| |
| After Neutralization Occurs |
2:05 | |
| |
Calculating pH of an Acid-Base Mixture cont'd |
2:51 | |
| |
| Example: Calculating pH of an Acid-Base Mixture, Step 1 - Neutralization |
2:52 | |
| |
| Example: Calculating pH of an Acid-Base Mixture, Step 2 - React With H₂O |
5:24 | |
| |
Buffers |
7:45 | |
| |
| Introduction to Buffers |
7:46 | |
| |
| When Acid is Added to a Buffer |
8:50 | |
| |
| When Base is Added to a Buffer |
9:54 | |
| |
Buffers cont'd |
10:41 | |
| |
| Calculating the pH |
10:42 | |
| |
| Calculating the pH When 0.010 mol NaOH is Added to 1.0 L of the Buffer |
14:03 | |
| |
Buffers cont'd |
14:10 | |
| |
| Calculating the pH When 0.010 mol NaOH is Added to 1.0 L of the Buffer: Step 1 -Neutralization |
14:11 | |
| |
| Calculating the pH When 0.010 mol NaOH is Added to 1.0 L of the Buffer: Step 2- ICE Table |
15:22 | |
| |
Buffer Preparation and Capacity |
16:38 | |
| |
| Example: Calculating the pH of a Buffer Solution |
16:42 | |
| |
| Effective Buffer |
18:40 | |
| |
Acid-Base Titrations |
19:33 | |
| |
| Acid-Base Titrations: Basic Setup |
19:34 | |
| |
Acid-Base Titrations cont'd |
22:12 | |
| |
| Example: Calculate the pH at the Equivalence Point When 0.250 L of 0.0350 M HClO is Titrated With 1.00 M KOH |
22:13 | |
| |
Acid-Base Titrations cont'd |
25:38 | |
| |
| Titration Curve |
25:39 | |
| |
Solubility Equilibria |
33:07 | |
| |
| Solubility of Salts |
33:08 | |
| |
| Solubility Product Constant: Ksp |
34:14 | |
| |
Solubility Equilibria cont'd |
34:58 | |
| |
| Q < Ksp |
34:59 | |
| |
| Q > Ksp |
35:34 | |
| |
Solubility Equilibria cont'd |
36:03 | |
| |
| Common-ion Effect |
36:04 | |
| |
| Example: Calculate the Solubility of PbCl₂ in 0.55 M NaCl |
36:30 | |
| |
Solubility Equilibria cont'd |
39:02 | |
| |
| When a Solid Salt Contains the Conjugate of a Weak Acid |
39:03 | |
| |
| Temperature and Solubility |
40:41 | |
| |
Complexation Equilibria |
41:10 | |
| |
| Complex Ion |
41:11 | |
| |
| Complex Ion Formation Constant: Kf |
42:26 | |
| |
Summary |
43:35 | |
| |
Sample Problem 1: Question |
44:23 | |
| |
Sample Problem 1: Part a) Calculate the pH at the Beginning of the Titration |
45:48 | |
| |
Sample Problem 1: Part b) Calculate the pH at the Midpoint or Half-way Point |
48:04 | |
| |
Sample Problem 1: Part c) Calculate the pH at the Equivalence Point |
48:32 | |
| |
Sample Problem 1: Part d) Calculate the pH After 27.50 mL of the Acid was Added |
53:00 | |
Section 12: Thermodynamics & Electrochemistry |
|
Entropy & Free Energy |
36:13 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:08 | |
| |
Introduction |
0:53 | |
| |
Introduction to Entropy |
1:37 | |
| |
| Introduction to Entropy |
1:38 | |
| |
Entropy and Heat Flow |
6:31 | |
| |
| Recall Thermodynamics |
6:32 | |
| |
| Entropy is a State Function |
6:54 | |
| |
| ∆S and Heat Flow |
7:28 | |
| |
Entropy and Heat Flow cont'd |
8:18 | |
| |
| Entropy and Heat Flow: Equations |
8:19 | |
| |
| Endothermic Processes: ∆S > 0 |
8:44 | |
| |
The Second Law of Thermodynamics |
10:04 | |
| |
| Total ∆S = ∆S of System + ∆S of Surrounding |
10:05 | |
| |
| Nature Favors Processes Where The Amount of Entropy Increases |
10:22 | |
| |
The Third Law of Thermodynamics |
11:55 | |
| |
| The Third Law of Thermodynamics & Zero Entropy |
11:56 | |
| |
Problem-Solving involving Entropy |
12:36 | |
| |
| Endothermic Process and ∆S |
12:37 | |
| |
| Exothermic Process and ∆S |
13:19 | |
| |
Problem-Solving cont'd |
13:46 | |
| |
| Change in Physical States: From Solid to Liquid to Gas |
13:47 | |
| |
| Change in Physical States: All Gases |
15:02 | |
| |
Problem-Solving cont'd |
15:56 | |
| |
| Calculating the ∆S for the System, Surrounding, and Total |
15:57 | |
| |
| Example: Calculating the Total ∆S |
16:17 | |
| |
Problem-Solving cont'd |
18:36 | |
| |
| Problems Involving Standard Molar Entropies of Formation |
18:37 | |
| |
Introduction to Gibb's Free Energy |
20:09 | |
| |
| Definition of Free Energy ∆G |
20:10 | |
| |
| Spontaneous Process and ∆G |
20:19 | |
| |
Gibb's Free Energy cont'd |
22:28 | |
| |
| Standard Molar Free Energies of Formation |
22:29 | |
| |
| The Free Energies of Formation are Zero for All Compounds in the Standard State |
22:42 | |
| |
Gibb's Free Energy cont'd |
23:31 | |
| |
| ∆G° of the System = ∆H° of the System - T∆S° of the System |
23:32 | |
| |
| Predicting Spontaneous Reaction Based on the Sign of ∆G° of the System |
24:24 | |
| |
Gibb's Free Energy cont'd |
26:32 | |
| |
| Effect of reactant and Product Concentration on the Sign of Free Energy |
26:33 | |
| |
| ∆G° of Reaction = -RT ln K |
27:18 | |
| |
Summary |
28:12 | |
| |
Sample Problem 1: Calculate ∆S° of Reaction |
28:48 | |
| |
Sample Problem 2: Calculate the Temperature at Which the Reaction Becomes Spontaneous |
31:18 | |
| |
Sample Problem 3: Calculate Kp |
33:47 | |
|
Electrochemistry |
41:16 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:08 | |
| |
Introduction |
0:53 | |
| |
Redox Reactions |
1:42 | |
| |
| Oxidation-Reduction Reaction Overview |
1:43 | |
| |
Redox Reactions cont'd |
2:37 | |
| |
| Which Reactant is Being Oxidized and Which is Being Reduced? |
2:38 | |
| |
Redox Reactions cont'd |
6:34 | |
| |
| Balance Redox Reaction In Neutral Solutions |
6:35 | |
| |
Redox Reactions cont'd |
10:37 | |
| |
| Balance Redox Reaction In Acidic and Basic Solutions: Step 1 |
10:38 | |
| |
| Balance Redox Reaction In Acidic and Basic Solutions: Step 2 - Balance Each Half-Reaction |
11:22 | |
| |
Redox Reactions cont'd |
12:19 | |
| |
| Balance Redox Reaction In Acidic and Basic Solutions: Step 2 - Balance Hydrogen |
12:20 | |
| |
Redox Reactions cont'd |
14:30 | |
| |
| Balance Redox Reaction In Acidic and Basic Solutions: Step 3 |
14:34 | |
| |
| Balance Redox Reaction In Acidic and Basic Solutions: Step 4 |
15:38 | |
| |
Voltaic Cells |
17:01 | |
| |
| Voltaic Cell or Galvanic Cell |
17:02 | |
| |
| Cell Notation |
22:03 | |
| |
Electrochemical Potentials |
25:22 | |
| |
| Electrochemical Potentials |
25:23 | |
| |
Electrochemical Potentials cont'd |
26:07 | |
| |
| Table of Standard Reduction Potentials |
26:08 | |
| |
The Nernst Equation |
30:41 | |
| |
| The Nernst Equation |
30:42 | |
| |
| It Can Be Shown That At Equilibrium E =0.00 |
32:15 | |
| |
Gibb's Free Energy and Electrochemistry |
32:46 | |
| |
| Gibbs Free Energy is Relatively Small if the Potential is Relatively High |
32:47 | |
| |
| When E° is Very Large |
33:39 | |
| |
Charge, Current and Time |
33:56 | |
| |
| A Battery Has Three Main Parameters |
33:57 | |
| |
| A Simple Equation Relates All of These Parameters |
34:09 | |
| |
Summary |
34:50 | |
| |
Sample Problem 1: Redox Reaction |
35:26 | |
| |
Sample Problem 2: Battery |
38:00 | |
Section 13: Transition Elements & Coordination Compounds |
|
The Chemistry of The Transition Metals |
39:03 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:11 | |
| |
Coordination Compounds |
1:20 | |
| |
| Coordination Compounds |
1:21 | |
| |
Nomenclature of Coordination Compounds |
2:48 | |
| |
| Rule 1 |
3:01 | |
| |
| Rule 2 |
3:12 | |
| |
| Rule 3 |
4:07 | |
| |
Nomenclature cont'd |
4:58 | |
| |
| Rule 4 |
4:59 | |
| |
| Rule 5 |
5:13 | |
| |
| Rule 6 |
5:35 | |
| |
| Rule 7 |
6:19 | |
| |
| Rule 8 |
6:46 | |
| |
Nomenclature cont'd |
7:39 | |
| |
| Rule 9 |
7:40 | |
| |
| Rule 10 |
7:45 | |
| |
| Rule 11 |
8:00 | |
| |
| Nomenclature of Coordination Compounds: NH₄[PtCl₃NH₃] |
8:11 | |
| |
| Nomenclature of Coordination Compounds: [Cr(NH₃)₄(OH)₂]Br |
9:31 | |
| |
Structures of Coordination Compounds |
10:54 | |
| |
| Coordination Number or Steric Number |
10:55 | |
| |
| Commonly Observed Coordination Numbers and Geometries: 4 |
11:14 | |
| |
| Commonly Observed Coordination Numbers and Geometries: 6 |
12:00 | |
| |
Isomers of Coordination Compounds |
13:13 | |
| |
| Isomers of Coordination Compounds |
13:14 | |
| |
| Geometrical Isomers of CN = 6 Include: ML₄L₂' |
13:30 | |
| |
| Geometrical Isomers of CN = 6 Include: ML₃L₃' |
15:07 | |
| |
Isomers cont'd |
17:00 | |
| |
| Structural Isomers Overview |
17:01 | |
| |
| Structural Isomers: Ionization |
18:06 | |
| |
| Structural Isomers: Hydrate |
19:25 | |
| |
| Structural Isomers: Linkage |
20:11 | |
| |
| Structural Isomers: Coordination Isomers |
21:05 | |
| |
Electronic Structure |
22:25 | |
| |
| Crystal Field Theory |
22:26 | |
| |
| Octahedral and Tetrahedral Field |
22:54 | |
| |
Electronic Structure cont'd |
25:43 | |
| |
| Vanadium (II) Ion in an Octahedral Field |
25:44 | |
| |
| Chromium(III) Ion in an Octahedral Field |
26:37 | |
| |
Electronic Structure cont'd |
28:47 | |
| |
| Strong-Field Ligands and Weak-Field Ligands |
28:48 | |
| |
Implications of Electronic Structure |
30:08 | |
| |
| Compare the Magnetic Properties of: [Fe(OH₂)₆]²⁺ vs. [Fe(CN)₆]⁴⁻ |
30:09 | |
| |
| Discussion on Color |
31:57 | |
| |
Summary |
34:41 | |
| |
Sample Problem 1: Name the Following Compound [Fe(OH)(OH₂)₅]Cl₂ |
35:08 | |
| |
Sample Problem 1: Name the Following Compound [Co(NH₃)₃(OH₂)₃]₂(SO₄)₃ |
36:24 | |
| |
Sample Problem 2: Change in Magnetic Properties |
37:30 | |
Section 14: Nuclear Chemistry |
|
Nuclear Chemistry |
16:39 |
| |
Intro |
0:00 | |
| |
Lesson Overview |
0:06 | |
| |
Introduction |
0:40 | |
| |
| Introduction to Nuclear Reactions |
0:41 | |
| |
Types of Radioactive Decay |
2:10 | |
| |
| Alpha Decay |
2:11 | |
| |
| Beta Decay |
3:27 | |
| |
| Gamma Decay |
4:40 | |
| |
| Other Types of Particles of Varying Energy |
5:40 | |
| |
Nuclear Equations |
6:47 | |
| |
| Nuclear Equations |
6:48 | |
| |
Nuclear Decay |
9:28 | |
| |
| Nuclear Decay and the First-Order Kinetics |
9:29 | |
| |
Summary |
11:31 | |
| |
Sample Problem 1: Complete the Following Nuclear Equations |
12:13 | |
| |
Sample Problem 2: How Old is the Rock? |
14:21 | |