Chemistry | Course Hero

Introduction to the atom

Orbitals

More on orbitals and electron configuration

Electron Configurations

Electron Configurations 2

Valence Electrons

Groups of the Periodic Table

Periodic Table Trends: Ionization Energy

Other Periodic Table Trends

Ionic, Covalent, and Metallic Bonds

Molecular and Empirical Formulas

The Mole and Avogadro

Formula from Mass Composition

Another mass composition problem

Balancing Chemical Equations

Stoichiometry

Stoichiometry: Limiting Reagent

Ideal Gas Equation: PV=nRT

Ideal Gas Equation Example 1

Ideal Gas Equation Example 2

Ideal Gas Equation Example 3

Ideal Gas Example 4

Partial Pressure

States of Matter

States of Matter Follow-Up

Specific Heat, Heat of Fusion and Vaporization

Chilling Water Problem

Phase Diagrams

Van Der Waals Forces

Covalent Networks, Metallic, and Ionic Crystals

Vapor Pressure

Suspensions, Colloids and Solutions

Solubility

Boiling Point Elevation and Freezing Point Supression

Introduction to Kinetics

Reactions in Equilibrium

Mini-Video on Ion Size

Keq Intuition (mathy and not necessary to progress)

Keq derivation intuition (can skip; bit mathy)

Heterogenous Equilibrium

Le Chatelier

Introduction to pH, pOH, and pKw

Acid Base Introduction

pH, pOH of Strong Acids and Bases

pH of a Weak Acid

pH of a Weak Base

Conjugate Acids and Bases

pKa and pKb Relationship

Buffers

Strong Acid Titration

Weak Acid Titration

Half Equivalence Point

Titration Roundup

Introduction to Oxidation States

More on Oxidation States

Hydrogen Peroxide Correction

Redox Reactions

Galvanic Cells

Types of Decay

Half-Life

Exponential Decay Formula Proof (can skip, involves Calculus)

Introduction to Exponential Decay

More Exponential Decay Examples

Macrostates and Microstates

Quasistatic and Reversible Processes

First Law of Thermodynamics/ Internal Energy

More on Internal Energy

Work from Expansion

PV-diagrams and Expansion Work

Proof: U=(3/2)PV or U=(3/2)nRT

Work Done by Isothermic Process

Carnot Cycle and Carnot Engine

Proof: Volume Ratios in a Carnot Cycle

Proof: S (or Entropy) is a valid state variable

Thermodynamic Entropy Definition Clarification

Reconciling Thermodynamic and State Definitions of Entropy

Entropy Intuition

Maxwell

More on Entropy

Efficiency of a Carnot Engine

Carnot Efficiency 2:  Reversing the Cycle

Carnot Efficiency 3:  Proving that it is the most efficient

Enthalpy

Heat of Formation

Hess

Gibbs Free Energy and Spontaneity

Gibbs Free Energy and Spontaneity

Gibbs Free Energy Example

Gibbs Free Energy Example

More rigorous Gibbs Free Energy/ Spontaneity Relationship

More rigorous Gibbs Free Energy/ Spontaneity Relationship

A look at a seductive but wrong Gibbs/Spontaneity Proof

A look at a seductive but wrong Gibbs/Spontaneity Proof

Stoichiometry Example Problem 1

Stoichiometry Example Problem 1

Stoichiometry Example Problem 2

Stoichiometry Example Problem 2

Limiting Reactant Example Problem 1

Limiting Reactant Example Problem 1

Empirical and Molecular Formulas from Stoichiometry

Empirical and Molecular Formulas from Stoichiometry

Example of Finding Reactant Empirical Formula

Example of Finding Reactant Empirical Formula

Stoichiometry of a Reaction in Solution

Stoichiometry of a Reaction in Solution

Another Stoichiometry Example in a Solution

Another Stoichiometry Example in a Solution