Education resources for parents, students, teachers & administrators
Chemistry Video Lessons by Topic
- Elements and Atoms
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- Introduction to the atom
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- Orbitals
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- More on orbitals and electron configuration
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- Electron Configurations
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- Electron Configurations 2
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- Valence Electrons
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- Groups of the Periodic Table
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- Periodic Table Trends: Ionization Energy
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- Other Periodic Table Trends
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- Ionic, Covalent, and Metallic Bonds
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- Molecular and Empirical Formulas
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- The Mole and Avogadro's Number
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- Formula from Mass Composition
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- Another mass composition problem
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- Balancing Chemical Equations
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- Stoichiometry
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- Stoichiometry: Limiting Reagent
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- Ideal Gas Equation: PV=nRT
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- Ideal Gas Equation Example 1
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- Ideal Gas Equation Example 2
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- Ideal Gas Equation Example 3
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- Ideal Gas Example 4
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- Partial Pressure
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- States of Matter
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- States of Matter Follow-Up
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- Specific Heat, Heat of Fusion and Vaporization
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- Chilling Water Problem
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- Phase Diagrams
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- Van Der Waals Forces
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- Covalent Networks, Metallic, and Ionic Crystals
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- Vapor Pressure
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- Suspensions, Colloids and Solutions
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- Solubility
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- Boiling Point Elevation and Freezing Point Supression
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- Introduction to Kinetics
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- Reactions in Equilibrium
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- Mini-Video on Ion Size
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- Keq Intuition (mathy and not necessary to progress)
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- Keq derivation intuition (can skip; bit mathy)
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- Heterogenous Equilibrium
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- Le Chatelier's Principle
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- Introduction to pH, pOH, and pKw
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- Acid Base Introduction
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- pH, pOH of Strong Acids and Bases
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- pH of a Weak Acid
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- pH of a Weak Base
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- Conjugate Acids and Bases
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- pKa and pKb Relationship
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- Buffers and Hendersen-Hasselbalch
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- Strong Acid Titration
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- Weak Acid Titration
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- Half Equivalence Point
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- Titration Roundup
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- Introduction to Oxidation States
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- More on Oxidation States
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- Hydrogen Peroxide Correction
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- Redox Reactions
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- Galvanic Cells
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- Types of Decay
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- Half-Life
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- Exponential Decay Formula Proof (can skip, involves Calculus)
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- Introduction to Exponential Decay
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- More Exponential Decay Examples
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- Macrostates and Microstates
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- Quasistatic and Reversible Processes
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- First Law of Thermodynamics/ Internal Energy
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- More on Internal Energy
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- Work from Expansion
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- PV-diagrams and Expansion Work
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- Proof: U=(3/2)PV or U=(3/2)nRT
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- Work Done by Isothermic Process
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- Carnot Cycle and Carnot Engine
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- Proof: Volume Ratios in a Carnot Cycle
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- Proof: S (or Entropy) is a valid state variable
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- Thermodynamic Entropy Definition Clarification
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- Reconciling Thermodynamic and State Definitions of Entropy
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- Entropy Intuition
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- Maxwell's Demon
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- More on Entropy
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- Efficiency of a Carnot Engine
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- Carnot Efficiency 2: Reversing the Cycle
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- Carnot Efficiency 3: Proving that it is the most efficient
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- Enthalpy
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- Heat of Formation
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- Hess's Law and Reaction Enthalpy Change
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- Gibbs Free Energy and Spontaneity
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- Gibbs Free Energy Example
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- More rigorous Gibbs Free Energy/ Spontaneity Relationship
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- A look at a seductive but wrong Gibbs/Spontaneity Proof
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- Stoichiometry Example Problem 1
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- Stoichiometry Example Problem 2
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- Limiting Reactant Example Problem 1
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- Empirical and Molecular Formulas from Stoichiometry
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- Example of Finding Reactant Empirical Formula
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- Stoichiometry of a Reaction in Solution
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- Another Stoichiometry Example in a Solution
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- Molecular and Empirical Forumlas from Percent Composition
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- Acid Base Titration
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- Spectrophotometry Introduction
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- Spectrophotometry Example
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- Hess's Law Example
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- Vapor Pressure Example
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- Change of State Example
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