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Advanced Placement Chemistry Help Topics

Chemical Reactions

(7 - 9% AP Exam Weighing)

4.1 Introduction for Reactions

4.2 Net Ionic Equations

4.3 Representations of Reactions

4.4 Physical and Chemical Changes

4.5 Stoichiometry

4.6 Introduction to Titration

4.7 Types of Chemical Reactions

4.8 Introduction to Acid-Base Reactions

4.9 Oxidation-Reduction (Redox) Reactions


(7 - 9% AP Exam Weighing)

5.1 Reaction Rates

5.2 Introduction to Rate Law

5.3 Concentration Changes over Time

5.4 Elementary Reactions

5.5 Collision Model

5.6 Reaction Energy Profile

5.7 Introduction to Reaction Mechanism

5.8 Reaction mechanism and Rate Law

5.9 Steady-State Approximation

5.10 Multistep Reaction Energy Profile

5.11 Catalysis


(7 - 9% AP Exam Weighing)

6.1 Endothermic and Exothermic Processes

6.2 Energy Diagrams

6.3 Heat Transfer and Thermal Equilibrium

6.4 Heat Capacity and Calorimetry

6.5 Energy of Phase Changes

6.6 Introduction to Enthalpy of Reaction

6.7 Bond Enthalpies

6.8 Enthalpy of Formation

6.9 Hess's Law


(7 - 9% AP Exam Weighing)

7.1 Introduction to Equilibrium

7.2 Direction of Reversible Reactions

7.3 Reaction Quotient and Equilibrium Constant

7.4 Calculating the Equilibrium Constant

7.5 Magnitude of the Equilibrium Constant

7.5 Properties of the Equilibrium Constant

7.7 Calculating Equilibrium Concentrations

7.8 Representations of Equilibrium

7.9 Introduction to Le Chatelier's Principle

7.10 Reaction Quotient and Le Chatelier's Principle

7.11 Introduction to Solubility Equilibria

7.12 Common-Ion Effect

7.13 pH and Solubility

7.14 Free Energy of Dissolution

Acids & Bases

(11 - 15% AP Exam Weighing)

8.1 Introduction to Acids & Bases

8.2 pH and pOH of Strong Acids and Bases

8.3 Weak Acids and Base Equilibria

8.4 Acid-Base Reactions and Buffers

8.5 Acid-Base Titrations

8.6 Molecular Structure of Acids and Bases

8.7 pH and pKa

8.8 Properties of Buffers

8.9 Henderson-Hasselbalch Equation

8.10 Buffer Capacity

Applications of Thermodynamics

(7 - 9% AP Exam Weighing)

9.1 Introduction to Entropy

9.2 Absolute Entropy and Entropy Change

9.3 Gibbs Free Energy and Thermodynamic


9.4 Thermodynamic and Kinetic Control

9.5 Free Energy and Equilibrium

9.6 Coupled Reactions

9.7 Galvanic (Voltaic) and Electrolytic Cells

9.8 Cell Potential and Free Energy

9.8 Cell Potential Under Nonstandard Conditions

9.9 Electrolysis and Faraday's Law