The topics listed below appear College Board's AP Chemistry course. These help pages are based on the standards that come directly from the College Board curriculum. Rather than heavy emphasis on notes these topics pages focus on understanding concepts through the typical types of problems you might encounter. Some of this is original content and some are curated problems publicly available.
Chemistry Topics
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Atomic Structure and Properties
1.2 Mass Spectroscopy of Elements
1.3 Elemental Composition of Pure Substances
1.5 Atomic Structure and Electron Configuration
1.6 Photoelectron Spectroscopy
1.8 Valence Electrons and Ionic Compounds
Molecular and Ionic Compound Structure and Properties
2.2 Intramolecular Force and Potential Energy
2.4 Structure of Metals and Alloys
2.6 Resonance and Formal Charge
2.7 VSEPR and Bond Hybridization
Intermolecular Forces and Properties
3.3 Solids, Liquids, and Gases
3.6 Deviations from Ideal Gas Law
3.8 Representations of Solutions
3.9 Separation of Solutions and Mixtures Chromatography
3.11 Spectroscopy and the Electromagnetic Spectrum
4.1 Introduction for Reactions
4.3 Representations of Reactions
4.4 Physical and Chemical Changes
4.7 Types of Chemical Reactions
4.8 Introduction to Acid-Base Reactions
4.9 Oxidation-Reduction (Redox) Reactions
5.3 Concentration Changes over Time
5.7 Introduction to Reaction Mechanism
5.8 Reaction mechanism and Rate Law
5.9 Steady-State Approximation
5.10 Multistep Reaction Energy Profile
6.1 Endothermic and Exothermic Processes
6.3 Heat Transfer and Thermal Equilibrium
6.4 Heat Capacity and Calorimetry
6.6 Introduction to Enthalpy of Reaction
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
7.6 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
7.14 Free Energy of Dissolution
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
8.6 Molecular Structure of Acids and Bases
8.9 Henderson-Hasselbalch Equation
Applications of Thermodynamics
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
9.7 Galvanic (Voltaic) and Electrolytic Cells
9.8 Cell Potential and Free Energy
9.9 Cell Potential Under Nonstandard Conditions
9.10 Electrolysis and Faraday's Law