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About AP Chemistry
The AP Chemistry course provides students with a college-level foundation to support
future advanced coursework in chemistry. Students cultivate their understanding of
chemistry through inquiry-based investigations, as they explore content such as: atomic
structure, intermolecular forces, and bonding, chemical reactions, kinetics, thermodynamics,
College Course Equivalent
The AP Chemistry course is designed to be the equivalent of the general chemistry course
usually taken during the first college year.
Students should have successfully completed a general high school chemistry course and
This course requires that 25 percent of instructional time engage students in lab
investigations. This includes a minimum of 16 hands-on labs (at least six of which are
inquiry-based). It is recommended that students keep a lab notebook throughout.
Units Exam Weighting of AP Chemistry
|Unit 1||Atomic Structure and Properties||7–9%|
|Unit 2||Molecular and Ionic Compound Structure and Properties||7-9%|
|Unit 3||Intermolecular Forces and Properties||18-22%|
|Unit 4||Chemical Reactions||7-9%|
|Unit 8||Acids and Bases||11-15%|
|Unit 9||Applications of Thermodynamics||7-9%|
Unit 1: Atomic Structure and Properties
1.7 Periodic Trends
Unit 2: Molecular and Ionic Compound Structure and Properties
2.5 Lewis Diagrams
2.6 Resonance and
Unit 3: Intermolecular Forces and Properties
3.4 Ideal Gas Law
3.6 Deviation from Ideal Gas Law
3.8 Representations of Solutions
3.12 Photoelectric Effect
3.13 Beer-Lambert Law
Unit 4: Chemical Reactions
Unit 5: Kinetics
5.1 Reaction Rates
5.3 Concentration Changes Over Time
5.5 Collision Model
Unit 6: Thermodynamics
6.1 Endothermic and Exothermic Processes
6.2 Energy Diagrams
6.3 Heat Transfer and Thermal Equilibrium
6.5 Energy of Phase Changes
6.7 Bond Enthalpies
6.8 Enthalpy of Formation
6.9 Hess’s Law
Unit 7: Equilibrium
7.2 Direction of Reversible Reactions
7.5 Magnitude of the Equilibrium Constant
7.7 Calculating Equilibrium Concentrations
7.8 Representations of Equilibrium
7.12 Common-Ion Effect
7.13 pH and Solubility
7.14 Free Energy of Dissolution
Unit 8: Acids and Bases
8.1 Introduction to Acids and Bases
8.3 Weak Acid and Base Equilibria
8.4 Acid-Base Reactions and Buffers
8.6 Molecular Structure of Acids and Bases
8.7 pH and pKa
8.10 Buffer Capacity
Unit 9: Applications of Thermodynamics
9.2 Absolute Entropy and Entropy Change
Recommended Lab Experiments for AP Chemistry
- Use the absorption of light to determine the identity and/or concentration of an analyte in solution.
- Use differences in intermolecular forces to separate a mixture into its components or to determine the identity of components of a mixture.
- Determine the formula of a compound by measuring the stoichiometry of the reaction of that compound with known reagents.
- Use gravimetric analysis to determine the amount of an analyte in a mixture.
- Use titration to determine the concentration of an analyte in a solution.
- Determine the rate law of a chemical reaction.
- Use calorimetry to determine the change in enthalpy of a process.
- Build electrochemical cells to determine the characteristics of an electrochemical reaction.
Exam Overview of AP Chemistry
|Section||Question Type||Number of Questions||Exam Weighting||Timing|
|I||Multiple-choice questions||60||50%||90 minutes|
|II||Free-response questions||50%||105 minutes|
|Long-answer questions (10 points each)||3|
|Short-answer questions (4 points each)||4|
References and Source of AP Chemistry
AP® Chemistry. Course and Exam Description. Fall 2022. CollegeBoard.