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AP Chemistry

Mostly Everything You Need to Know About AP Chemistry

Exam Outline

Section 1: Multiple Choice Questions

QuestionsTimeExam Weight
6090 minutes50%

Section 2: Free Response

QuestionsTimeExam Weight
7105 minutes50%

A calculator is allowed in both sections, with a periodic table and equations sheet provided.

Course Content

Unit 1: Atomic Structure and Properties

7%–9% of Exam Score
1.1 Moles and molar mass
1.2 Mass spectroscopy of elements
1.3 Elemental composition of pure substances
1.4 Composition of mixtures
1.5 Atomic structure and electron configuration
1.6 Photoelectron spectroscopy
1.7 Periodic trends
1.8 Valence electrons and ionic compounds

Unit 2: Molecular and Ionic Compound Structure and Properties

7%–9% of Exam Score
2.1 Types of chemical bonds
2.2 Intramolecular force and potential energy
2.3 Structure of ionic solids
2.4 Structure of metals and alloys
2.5 Lewis diagrams
2.6 Resonance and formal charge
2.7 VSEPR and bond hybridization

Unit 3: Intermolecular Forces and Properties

18%–22% of Exam Score
3.1 Intermolecular Forces
3.2 Properties of Solids
3.3 Solids, Liquids, and Gases
3.4 Ideal Gas Law
3.5 Kinetic Molecular Theory
3.6 Deviation from Ideal Gas Law
3.7 Solutions and Mixtures
3.8 Representations of Solutions
3.9 Separation of Solutions and Mixtures Chromatography
3.10 Solubility
3.11 Spectroscopy and the Electromagnetic Spectrum
3.12 Photoelectric Effect
3.13 Beer-Lambert Law

Unit 4: Chemical Reactions

7%–9% of Exam Score
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

Unit 5: Kinetics

7%–9% of Exam Score
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 Mechanisms
5.8 Reaction Mechanism and Rate Law
5.9 Steady-State Approximation
5.10 Multistep Reaction Energy Profile
5.11 Catalysis

Unit 6: Thermodynamics

7%–9% of Exam Score
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

Unit 7: Equilibrium

7%–9% of Exam Score
7.1 Introduction to Equilibrium
7.2 Direction of Reversible Reactions
Abigail Giordano
7.3 Reaction Quotient and Equilibrium Constant
Abigail Giordano
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
7.12 Common-Ion Effect
7.13 pH and Solubility

Unit 8: Acids and Bases

11%–15% of Exam Score
8.1 Introduction to Acids and Bases
8.2 pH and pOH of Strong Acids and Bases
8.3 Weak Acid and Base Equilibria
8.4 Acid-Base Reactions and Buffers
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

Unit 9: Applications of Thermodynamics

7%–9% of Exam Score
9.1 Introduction to Entropy
9.2 Absolute Entropy and Entropy Change
9.3 Gibbs Free Energy and Thermodynamic Favorability
9.4 Thermodynamic and Kinetic Control
Abigail Giordano
9.5 Free Energy and Equilibrium
9.6 Coupled Reactions
9.7 Galvanic (Voltaic) Cells
9.8 Cell Potential and Free Energy
Abigail Giordano
9.9 Cell Potential Under Nonstandard Conditions
9.10 Electrolysis and Faraday’s Law

Notes & Resources

Work in Progress

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