AP Chemistry

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Unit 1: Atomic Structure and Properties

AP Chem Unit 1 FRQ Practice Prompt Answers & Feedback

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AP Chemistry Free Response Questions

Administration 1

Administration 2

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AP Chemistry Review 2020 | Examp Prep +  Free Practice | Fiveable

Let's dig deeper into unit 1 of AP Chemistry, in which we cover moles, mass spectroscopy, isotopes, empirical & molecular formulas, composition of mixtures, Coulomb's Law, electron configuration, photoelectron spectroscopy, periodic trends (ionization, atomic & ionic radius, electron affinity, electronegativity), valence electrons, and more!

Atomic Structure and Properties

Let's dive into unit 2 of AP Chemistry in which we cover ionic bonding, nonpolar & polar covalent bonding, metallic bonding, delocalization, sigma & pi bonds, bond length & energy, ionic solids, lattice energy, alloys, lewis dot diagrams, resonance, formal charge, VESPR, Bond Hybridization, molecular geometry, and much more!

Unit 2: Molecular and Ionic Compound Structures and Properties

Molecular and Ionic Compound Structures and Properties

Let's explore unit 3 of AP Chemistry in which we cover intermolecular forces, properties of solids/liquids/gases, deviations from ideal gas law, kinetic molecular theory, dilutions, properties of solutions, separation of mixtures, solubility rules, photoelectric effect, spectophotometry, Beer-Lambert Law, and absorption!

Unit 3: Intermolecular Forces and Properties

Intermolecular Forces and Properties

Chemical reactions! In unit 4 of AP Chemistry, we cover net-ionic equations, stoichiometry, physical vs chemical changes, balancing chemical equations, titrations, and types of chemical reactions (synthesis, combustion, decompostion, single & double replacement, precipitation, acid-base neutralization, and redox), and more!

Unit 4: Chemical Reactions

Chemical Reactions

How fast will this reaction proceed? In unit 5 of AP Chemistry, we cover reaction rates, rate laws, reaction orders, integrated rate laws, collision theory, energy and reaction progress graphs, Arrhenius equation, reaction mechanisms into elementary steps, (catalysts, intermediates, rate determining steps), and activation energy!

Unit 5: Kinetics

Kinetics

Bring on the heat! In unit 6 of AP Chemistry, we cover exothermic vs endothermic processes, energy diagrams, phase changes, heat transfer, thermal equilibrium, heat capacity, calorimetry, heat equations, heat curves, enthalpy of reaction, bond enthalpy, bond dissociation energy, enthalpy of formation, Hess's Law, and much more!

Unit 6: Thermodynamics

Thermodynamics

It's all things equilibrium in unit 7 of AP Chemistry! We cover dynamic equilibrium, equilibrium constant, equilibrium concentrations, reaction quotient, particle representations of equilibrium, ICE tables, solubility equilibria, Le Chatelier's Principle, pH & solubility, free energy of dissolution!

Unit 7: Equilibrium

Equilibrium

Let's dig deeper into acids and bases in unit 8 of AP Chemistry! We cover the definition and molecular structure of acids & bases, pH and pOH of strong acids & bases, weak acid & base equilibria, Henderson-Hasselbalch equation, acid-base titrations, properties of buffers, buffer capacity, acid-base reactions, pH, pKa, pKb!

Unit 8: Acids and Bases

Acids and Bases

Learn about batteries and disorder in unit 9 of AP Chemistry. We cover entropy changes, Gibbs free energy, thermodynamic favorability, kinetic control, relationship between equilibrium constant and free energy, galvanic (voltaic) and electrolyte cells, half-reactions, cell potential, electrolysis, Faraday's Law!

Unit 9: Applications of Thermodynamics

Applications of Thermodynamics

Welcome to AP Chemistry! This is an overview of what will be expected in your AP Chemistry class and exam. We'll cover everything from test structure, to AP Chem units, to significant figures, to commonly asked questions about the AP Chem course.

Introduction

Learn about the AP Chemistry essentials. These are things that you should have memorized to succeed in AP Chemistry. We'll cover everything from nomenclature to energy to significant figures. With this review, you'll be more than ready to tackle AP Chemistry!

AP Chemistry Essentials

Learn how to approach multiple choice questions on the AP Chemistry exam with our review covering MCQ logistics, effective strategies, and examples. With review and practice, you'll be ready to ace the MCQs in the AP Chem exam!

Multiple Choice Questions

Let's break down the free response questions of the AP Chemistry exam! We'll cover FRQ logistics, scoring guidelines, effective strategies, and examples. 

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Exam Reviews 2020

In this comprehensive review of AP Chemistry, we cover everything from intermolecular forces to kinetics to thermodynamic favorability! With examples and practice, you'll be ready to ace the AP Chemistry exam!

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Key Vocabulary

Intro to Chemistry

Major Topics Covered

Unit 1 Overview: Atomic Structure and Properties

What are Moles?

Molar Mass

How to Calculate

Calculating Molar Mass: Carbon Dioxide

Avogadro's Number


CO2 - Converting from Grams to Moles 

CO2 - Converting from Moles to Atoms

CO2 - Finding the number of atoms of C

CO2 - Finding the number of atoms of O

Moles and Molar Mass

Mass Spectroscopy and Isotopes

What are Isotopes?

Average Atomic Mass Example

Another Practice Question

Sample AP Question - 2007 Exam

Mass Spectroscopy as a Laboratory Procedure

Mass Spectroscopy of Elements

Pure Substances

🧊Solids

💧Liquids

♨️Gases

Formula Units

Law of Definite Proportions

Empirical Formula 

Elemental Composition of Pure Substances

What Are Mixtures?

Separation of Mixtures

Distillation

Filtration

Chromatography

Practice Question

Composition of Mixtures

Dalton's Theory

Coulomb's Law

Electrons

The Bohr Model

Electron Configuration

Another Example - Element 26 (Fe)

Atomic Structure and Electron Configurations

The Photoelectric Effect

How Does it Work? 

Interpreting the Graph

Practice MCQ

Answers to MCQ

Previous AP Question

Photoelectron Spectroscopy & Graph Interp.

Atomic Radius

Ionic Radius

Electronegativity

Ionization Energy

Electron Affinity

Overview Image

Periodic Trends

What to know before bonding

Valence Electrons

Charges

Types of Elements

Types of Bonds

Ionic Bonds

Covalent Bonds

Check your Understanding

Answers

Valence Electrons and Ionic Compounds

2.0: Unit Overview

The Big Picture of Unit 2

The Details of Unit 2

Unit 2 Overview: Molecular and Ionic Bonding

Ionic Bonding

Applying Coulomb's Law

Covalent Bonding

Example of Polar Covalent Bond - H2O

Example of Nonpolar Covalent Bond - O2

Distinguishing Between Nonpolar & Polar Covalent Bonds

Which Bond will Form?

Characteristics of Both

Types of Chemical Bonds

Types of Covalent Bonds


Bond Length and Bond Energy

Forces Within Ionic Bonds

Intramolecular Force and Potential Energy 

Structure 

Explaining the Lattice Structure

Properties of Ionic Substances

Lattice Energy

Review

Putting Everything Together

Sample Responses

Ionic Bonding and Ionic Solids

Metallic Bonding

Comparing Solids

Alloys

Sample response (a)

Metallic Bonding and Alloys

What are Lewis Dot Diagrams?

Drawing Lewis Dot Diagrams 

Ionic LDS

Covalent LDS

Answers to Questions Given Throughout

Lewis Dot Diagrams

Resonance

How do you know when something has resonance?

Formal Charge

How do you calculate formal charge?

When do I check formal charge?

Example

Resonance and Formal Charge

Valence Shell Electron Pair Repulsion (VSEPR)

Notes

VSEPR

Bonding

Sigma and Pi Bonds

Hybridization

VSEPR, Bond Hybridization, and Molecular Geometry

From the College Board

👀 Develop Your Understanding of this unit

🔎 Big Idea Questions

👨‍🔬 What Is Unit 3 All About?

📝Key Vocabulary

🤔What you'll Learn

Unit 3 Overview: Intermolecular Forces and Properties

London Dispersion Forces 

Dipole-Dipole Interactions 

Sample Question - LDF + Dipole-Dipole

Hydrogen Bonding

Ion Dipole Forces

Ion-Ion Attractions

Summary

Intermolecular Forces

What is Solubility?

Saturation of Solutions

Saturated Solutions⚖️

Undersaturated Solutions⬇️

Supersaturated Solutions⬆️

Factors Affecting Solubility

Polarity

Pressure

Temperature

Solubility and Solubility Rules

What Is Light?💡

Wavelength and the Electromagnetic Spectrum

The Electromagnetic Spectrum🌈

Spectroscopy and the Electromagnetic Spectrum

Quantum Mechanics: Where is the Electron?

Max Planck and the Ultraviolet Catastrophe

Max Planck to the Rescue!

Quantum Mechanics and the Photoelectric Effect

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🧪AP Chemistry - Free Response Questions

Exam Dates:

may 7, 2021

, may 25, 2021

, june 10, 2021

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AP Chemistry Free Response Questions

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