AP®︎ Chemistry Unit 3: Notes & Study Guide
Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 3 of AP Chemistry – Properties of Substances and Mixtures.
Unit 3: Properties of Substances and Mixtures
How intermolecular forces determine whether something is a solid, liquid, or gas, and how mixtures and solutions behave.
Begin with Topic 3.1: Intermolecular and Interp...To review Unit 3, go through each of the 13 topics below.
Everything you actually need to know for your Unit 3 test, pulled directly from the AP® Chemistry curriculum.
Intermolecular and Interparticle Forces
Intermolecular and Interparticle Forces
- What Intermolecular and Interparticle Forces Are
- Types of Intermolecular and Interparticle Forces
- Relative Strength and Structure Effects
Properties of Solids
Properties of Solids
- How Particle Structure Determines Solid Properties
- The Four Types of Crystalline Solids
- Comparing the Four Solid Types
Solids, Liquids, and Gases
Solids, Liquids, and Gases
- How the Three Phases Differ at the Particulate Level
- Comparing the Three Phases
- How Intermolecular Forces and Temperature Control Phases
Ideal Gas Law
Ideal Gas Law
- The Ideal Gas Law
- How the Variables Are Related
- Using the Ideal Gas Law in Problems
Kinetic Molecular Theory
Kinetic Molecular Theory
- What the Kinetic Molecular Theory Says About Gases
- Kinetic Energy and Temperature
- Maxwell–Boltzmann Distributions
Deviation from Ideal Gas Law
Deviation from Ideal Gas Law
- Why the Ideal Gas Law Sometimes Fails
- The Two Causes of Non‑Ideal Behavior
- Conditions That Increase Deviation
Solutions and Mixtures
Solutions and Mixtures
- What Solutions Are
- How Solutions Form at the Particle Level
- Expressing Concentration with Molarity
Representations of Solutions
Representations of Solutions
- What a Solution Is at the Particle Level
- Types of Solutes in Aqueous Solutions
- Representing Concentration in Diagrams
Separation of Solutions and Mixtures
Separation of Solutions and Mixtures
- Why Dissolved Substances Can’t Be Separated by Filtration
- The Two Major Separation Methods You Must Know
- Types of Distillation
Solubility
Solubility
- What Solubility Is
- Intermolecular Forces and “Like Dissolves Like”
- Saturation and Solubility Curves
Spectroscopy and the Electromagnetic Spectrum
Spectroscopy and the Electromagnetic Spectrum
- What Electromagnetic Radiation Is
- The Regions of the Electromagnetic Spectrum
- Types of Energy Transitions and Their Spectral Regions
Properties of Photons
Properties of Photons
- What a Photon Is
- The Mathematical Relationships You Must Know
- Electronic Transitions in Atoms and Molecules
Beer-Lambert Law
Beer-Lambert Law
- How Light Absorption Is Measured
- The Beer–Lambert Law
- Why Beer’s Law Is Linear
Notes
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