Khan Academy on a Stick
Reaction rates

Introduction to Kinetics
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Kinetics, activation energy, activated complex and catalysts.

Reactions in Equilibrium
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Equilibrium reactions and constants.

MiniVideo on Ion Size
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Correcting a mistake and learning a bit about ion size

Keq Intuition (mathy and not necessary to progress)
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A probabilistic look at how molecules react to develop the intuition behind the equilibrium constant formula.

Keq derivation intuition (can skip; bit mathy)
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A more concrete attempt at showing how the probabilities of molecules reacting is related to their concentration.

Heterogeneous Equilibrium
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Ignoring the solution or the solid state molecules when calculating the equilibrium constant.

Le Chatelier's Principle
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Le Chatelier's Principle regarding the "stressing" of reactions in equilibrium

Introduction to pH, pOH, and pKw
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Autoionization of water into hydronium and hydroxide ions. pH, pOH, and pKa.