Unit 1: Atomic Structure & Properties

Moles & Molar Mass

The Mole Concept

Masses & Particles

Molar Mass

Mass Spectra of Elements

Mass Spectrum of an Element

Average Atomic Mass

Elements & Mixtures

Elemental Composition

Composition of Mixtures

Elemental Analysis

Atoms & Electrons

Atomic Structure

Using Coulomb’s Law

Electron Configuration

The Aufbau Principle

Ionization Energy

Photoelectron Spectroscopy

Periodic Trends

Structure of the Periodic Table

Periodic Trends

Predicting Properties of Elements

Valence Electrons & Ionic Compounds

Unit 2: Compound Structure & Properties

Chemical Bonding

Electronegativity Values

Covalent Bonds

Ionic vs Covalent

Valence Electrons in a Metallic Solid

Intramolecular Force & Potential Energy

Coulomb's Law & Attractive Forces

Ionic Crystals & Metals

Ionic Crystals

Representing Metallic Bonding

Interstitial Alloys

Substitutional Alloys

Lewis Diagrams

Lewis Diagrams

Resonance & Lewis Structures

Formal Charge

Limitations of Lewis Structures

VSEPR & Hybridization

VSEPR Theory

Hybridization

Sigma & Pi Bonds

Unit 3: Properties of Substances & Mixtures

Intermolecular & Interparticle Forces

London Dispersion Forces

Dipole-Induced Dipole Interactions

Dipole-Dipole Interactions

Ion-Dipole Interactions

Molecular Dipole Moment

Hydrogen Bonding

Interactions in Large Biomolecules

Properties of Solids, Liquids & Gases

Explaining the Properties of Solids & Liquids

Properties of Ionic Solids

Covalent Network Solids

Molecular Solids

Metallic Solids

Noncovalent Interactions in Large Molecules

The Structure of Solids

The Liquid Phase

The Gas Phase

Gas Laws

The Ideal Gas Law

Partial Pressure & Total Pressure

Graphical Representations of the Gas Laws

Kinetic Molecular Theory

The Maxwell Boltzmann Distribution

Non-Ideal Behavior of Gases

Solutions & Mixtures

Calculations About Solutions

Homogeneous & Heterogeneous Mixtures

Molarity

Particulate Representations of Solutions

Separation By Chromatography

Separation by Distillation

Solubility of Ionic & Molecular Compounds

Spectroscopy

The Electromagnetic Spectrum

Transitions Associated with Radiation

Properties of Photons

Beer-Lambert Law

Unit 4: Chemical Reactions

Chemical Changes

Physical & Chemical Changes

Representing Chemical Changes

Balancing Chemical Equations

Physical & Chemical Processes

Stoichiometry

Conservation of Mass

Mole Calculations

Ideal Gas Law & Solutions

Introduction to Titration

Types of Chemical Reactions

Identifying Acid-Base Reactions

Oxidation-Reduction Reactions

Assigning Oxidation Numbers

Oxidation-Reduction (Redox) Reactions

Precipitation Reactions

Brønsted-Lowry Acids & Bases

Brønsted-Lowry Acids & Bases

Conjugate Acids & Bases

Unit 5: Kinetics

Reaction Rates

Measuring Reaction Rate

Stoichiometry & Reaction Rate

Factors Affecting Reaction Rate

Introduction to Rate Law

Concentration-Time Graphs

Manipulating Concentration-Time Graphs

Concentration-Time Graphs & Rate Constants

Concentration-Time Graphs & Half-Life

Catalysts & Reaction Rate

Catalysts in Action

Elementary Reactions & Collisions

Elementary Reactions

Collision Model

Reaction Energy Profiles

The Arrhenius Equation

Reaction Mechanisms

Reaction Mechanisms

Reaction Mechanism & Rate Law

Pre-Equilibrium Approximation

Multistep Reaction Energy Profile

Unit 6: Thermochemistry

Chemical Energy

Energy of Phase Changes

Exothermic & Endothermic Reactions

Energy Diagrams

Thermal Energy & Molecular Collisions

Calorimetry

Energy Transfers

Calorimetry Calculations

Enthalpy Changes

Enthalpy of Reaction

Enthalpy & Bond Energies

Enthalpy of Formation

Hess's Law

Unit 7: Equilibrium

Equilibrium

Reactions & Equilibrium

Reversible Reactions

Equilibrium Constants

The Reaction Quotient

Calculating the Equilibrium Constant

Magnitude of the Equilibrium Constant

Manipulating the Equilibrium Constant

Equilibrium Representation & Calculations

Calculating Equilibrium Concentrations

Representations of Equilibrium

Le Châtelier’s Principle

Le Châtelier’s Principle

Reaction Quotient & Le Châtelier’s Principle

Solubility Equilibria

Solubility-Product Constant

Common-Ion Effect

Unit 8: Acids & Bases

pH & pOH

pH & pOH

The Ionic Product of Water

pH & pOH of Strong Acids & Bases

Acids & Bases

Ionization of Weak Acids & Weak Bases

Acid-Base Reactions

Relative Strength of Acids & Bases

pH & pKa

Acid-Base Titrations

Titration Curves & Equivalence Points

Titration Curves & Half-Equivalence Points

Titration Curves of Polyprotic Acids

Acid-Base Indicators

Buffers

Properties of Buffers

The Henderson-Hasselbalch Equation

Buffer Capacity

pH & Solubility

Unit 9: Thermodynamics & Electrochemistry

Entropy

Introduction to Entropy

Entropy Calculations

Free Energy

Gibbs Free Energy Change

Thermodynamic Favorability

Gibbs Free Energy Calculations

Thermodynamic & Kinetic Control

Free Energy & Equilibrium

Coupled Reactions

Free Energy of Dissolution

Electrochemical Cells

Electrochemical Cells

Cell Potential & Thermodynamic Favorability

Cell Potential Under Nonstandard Conditions

Cell Potential & the Nernst Equation

Electrolysis & Faraday’s Law

Study tools

• College Board AP® Chemistry · Exam Questions
• College Board AP® Chemistry · Past Papers

Related links

• AP® Chemistry · Revision Notes
• AP® Chemistry · Exam Questions
• AP® Chemistry · Past Papers
• AP® Chemistry · Glossary