CHEM 203

U of C

Course Overview

Grade Boosters

Lessons & Practice

I. Welcome

1. Gases

2.2hr

1.1.1. Intro to Stoichiometry4 min

1.1.2. Reaction Stoichiometry8 min

1.1.3. Example6 min

1.1.4. Example: Solving Limiting Reagent Gas Stoichiometry6 min

1.2.1. Phases of Matter3 min

1.3.1. The Ideal Gas Law5 min

1.3.2. Gas Laws9 min

1.3.3. Example2 min

1.3.4. Example7 min

1.4.1. Gas Mixtures & Partial Pressures6 min

1.4.2. Example2 min

1.4.3. Practice4 min

1.5.1. Applications of the Ideal Gas Law3 min

1.5.2. Example10 min

1.6.1. Kinetic Molecular Theory 7 min

1.7.1. Relationships Between Kinetic Energy, Temperature, and Speeds!9 min

1.7.2. Root Mean Squared Speed Equation3 min

1.7.3. Example5 min

1.7.4. Example5 min

1.8.1. Real Gases and the Van der Waals Equation16 min

1.8.2. Real Gases vs Ideal Gases & the Compressibility Factor5 min

1.8.3. Concept Clarifier: Real Gases4 min

1.8.4. Example4 min

1.Q. Checkpoint Quiz6 Qns

2. Chemical Kinetics

1.8hr

2.1.1. Introduction to Kinetics1 min

2.2.1. Reaction Rates 3 min

2.2.2. Measuring Reaction Rates4 min

2.2.3. Practice: Rate of Reaction6 min

2.2.4. Practice: Rate of Reaction5 min

2.3.1. Rate Laws2 min

2.3.2. Example: Determining Reaction Order44 sec

2.3.3. Determining the Rate Law From Experimental Data 10 min

2.3.4. Shortcut to Find Units of k Quicker 3 min

2.4.1. Integrated Rate Laws33 sec

2.4.2. Integrated Rate Laws for Various Orders 7 min

2.4.3. Example: Plotting a Straight Line with the Integrated Rate Laws

2.4.4. Integrated Rate Laws Cheatsheet

2.4.5. First Order Reactions

2.4.6. Second Order Reactions

2.5.1. Half-life for Various Orders 4 min

2.5.2. Practice: Radioactive Decay in Smoke Detectors1 min

2.6.1. 3 Neccessary Steps For a Reaction to Occur 1 min

2.6.2. Collision Theory7 min

2.6.3. Collision Theory Represented By A Graph2 min

2.6.4. Transition State Theory 4 min

2.6.5. Additional Notes on the Arrhenius Equation 9 min

2.7.1. Arrhenius Equation1 min

2.7.2. Example: Arrhenius Equation1 min

2.8.1. Reactions Mechanisms – Elementary Reactions4 min

2.8.2. Rate Determining Step Introduction 5 min

2.8.3. Example: Reactions Mechanisms – Elementary Steps

2.8.4. Example: Rate Determining Step14 min

2.9.1. Catalysts3 min

2.9.2. Homogenous and Heterogeneous Catalysts4 min

2.9.3. Example: Identifying a Catalyst Vs an Intermediate In a Mechanism 2 min

2.9.4. Example: Catalysts 224 sec

2.Q. Checkpoint Quiz6 Qns

3. Chemical Equilibrium

2.2hr

3.I. Chapter Intro3 min

3.1.1. Introduction to Equilibrium 2 min

3.1.2. Understanding Equilibrium3 min

3.2.1. Concentration vs Time Graphs4 min

3.2.2. Predicting Equilibria: The Reaction Quotient (Q) 6 min

3.2.3. Example4 min

3.2.4. Practice3 min

3.3.1. Equilibrium Constant (K)10 min

3.3.2. The Magnitude of the Equilibrium Constant, K8 min

3.3.3. Manipulating Equilibrium Constants5 min

3.3.4. Example: Calculation of an Equilibrium Constant4 min

3.3.5. Calculating the Equilibrium Constant Concept Clarifier54 sec

3.3.6. Example: Manipulating Equilibrium Constants3 min

3.4.1. Le Chatelier's Priniciple14 min

3.4.2. Effect of a change in Concentration2 min

3.4.3. Effect of a change in Volume/Pressure3 min

3.4.4. Effect of a Change in Temperature3 min

3.4.5. Effect of a Catalyst2 min

3.4.6. Changes to Concentration Time Graphs Based on Changes To The System11 min

3.5.1. Intro to ICE Tables

3.5.2. Example 19 min

3.5.3. Example 29 min

3.5.4. Example 33 min

3.5.5. Example 49 min

3.5.6. Example 512 min

3.Q. Checkpoint Quiz8 Qns

4. Acid-Base Equilibria

2.1hr

4.I. Chapter Intro4 min

4.1.1. Definitions of Acids and Bases 10 min

4.1.2. Autoionization of Water (Kw) 6 min

4.2.1. pH Scale 7 min

4.2.2. Example2 min

4.2.3. Example6 min

4.3.1. Identifying Conjugate Acid and Base Pairs 7 min

4.3.2. Relationships Between the Strength of an Acid/Base and its Conjugate Base/Acid5 min

4.3.3. Acids and their Equations7 min

4.3.4. Bases and their Equations6 min

4.3.5. Practice2 min

4.4.1. Acidic, Basic, and Neutral Salts 8 min

4.4.2. Salts (Cntd.)3 min

4.4.3. Example1 min

4.4.4. Example5 min

4.4.5. Salts Cheatsheet

4.5.1. Acids and their Equations7 min

4.5.2. Bases and their Equations6 min

4.5.4. Example21 min

4.5.5. Acids With Different Numbers of Protons5 min

4.5.6. Strong Base + Strong Acid Reactions3 min

4.5.7. Strong Base + Weak Acid Reactions4 min

4.5.8. Weak Base + Strong Acid Reactions3 min

4.5.9. Types of Acid or Base Reactions and pH Calculations Summary

4.6.1. Acid Base Equations Cheatsheet

4.6.2. Acid/Base Important Relationships Cheatsheet

4.Q. Checkpoint Quiz4 Qns

5. Buffers and Acid-Base Titrations

2.5hr

6. Solubility

51min

6.1.1. Solubility8 min

6.1.2. Example: Ksp

6.1.3. Solubility Chart 8 min

6.2.1. Q vs K to Predict Solubility5 min

6.2.2. Example: Will A Precipitate Form?16 min

6.3.1. Factors that Affect Solubility2 min

6.3.2. Common-ion Effect Introduction4 min

6.3.3. Common-ion Effect Problem 7 min

6.Q. Checkpoint Quiz5 Qns

7. Thermodynamics

2.2hr

7.1.1. Thermodynamics4 min

7.1.2. State Variables 3 min

7.1.3. Extensive vs Intensive Properties 2 min

7.1.4. Example2 min

7.1.5. Additional Terminology5 min

7.2.1. 0th Law of Thermodynamics 3 min

7.3.1. The 1st Law of Thermodynamics7 min

7.4.1. Heat Capacity and Calorimetry13 min

7.4.2. Example7 min

7.4.3. Example6 min

7.4.4. Example7 min

7.5.1. Enthalpy of Reaction2 min

7.5.2. Example4 min

7.6.1. Heats of Formation6 min

7.7.1. Bond Energies4 min

7.8.1. Hess’ Law5 min

7.9.1. Signs of Heat and Work & Calculating Work4 min

7.9.2. Example5 min

7.9.3. Practice1 min

7.9.4. Practice3 min

7.10.1. 2nd Law of Thermodynamics (Entropy)6 min

7.10.2. Factors Affecting Entropy Changes 10 min

7.10.3. Example1 min

7.11.1. 3rd Law of Thermodynamics1 min

7.11.2. Summary of the Laws of Thermodynamics

7.12.1. Gibbs Free Energy and Spontaneity2 min

7.12.2. Spontaneity 7 min

7.12.3. Predicting Spontaneity Based off Entropy2 min

7.12.4. Example: Gibbs Free Energy & Spontaneity3 min

7.13.1. Chemical Equilibrium and ΔG Equations5 min

7.13.2. DeltaGo and K 3 min

7.13.3. Example

7.13.4. Chemical Equilibrium and ΔG Practice

7.13.5. Chemical Equilibrium and ΔG Practice #2

7.13.6. Chemical Equilibrium and ΔG Practice #3

7.Q. Checkpoint Quiz4 Qns

8. Electrochemistry

1.5hr

8.1.1. Redox Reactions Theory8 min

8.1.2. Oxidation States - Additional Information5 min

8.1.3. Oxidation Numbers (Oxidation States)7 min

8.1.4. Example3 min

8.2.1. Galvanic/Voltaic Cells13 min

8.2.2. Cell Notation (Cell Diagram)2 min

8.2.3. Example: Will A Reaction Occur? 10 min

8.2.4. Example: Electrochemistry2 min

8.3.1. Reduction Potentials 10 min

8.3.2. How Potentials Relate to Spontaneity 7 min

8.3.3. Example: Electrochemical Cell Practice 4 min

8.4.1. Cell Potential Equations 2 min

8.4.2. Electrochemical Cells in Non-standard Conditions: Nernst Equation1 min

8.4.3. Example: Solving for Keq and deltaGo 5 min

8.4.4. Example: Electrochemical Cell Practice with Equations11 min

8.Q. Checkpoint Quiz7 Qns

Mock Exams

ME.1. Midterm - Mock Assessment38 Qns

ME.2. Term Test #1 - Mock Assessment46 Qns

ME.3. Term Test #2 - Mock Assessment49 Qns

ME.4. Final Exam - Mock Assessment 82 Qns

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