Khan Academy

Worked example: Measuring enthalpy of reaction using coffee-cup calorimetry (K-A)

Worked example: Calculating an equilibrium constant from initial and equilibrium pressures (K-A)

Worked example: Calculating equilibrium concentrations from initial concentrations (K-A)

Worked examples: Calculating equilibrium constants (K-A)

Writing equilibrium constant and reaction quotient expressions (K-A)

Direction of reversible reactions (K-A)

Dynamic equilibrium (K-A)

Le Chȃtelier’s principle: Changing concentration (K-A)

Le Chȃtelier’s principle: Changing temperature (K-A)

Le Chȃtelier’s principle: Changing volume (K-A)

Worked example: Calculating the equilibrium total pressure after a change in volume (K-A)

Worked example: Using Le Chȃtelier’s principle to predict shifts in equilibrium (K-A)

Magnitude of the equilibrium constant (K-A)

Properties of the equilibrium constant (K-A)

Introduction to solubility equilibria (K-A)

pH and solubility (K-A)

The common-ion effect (K-A)

Worked example: Calculating solubility from Kₛₚ (K-A)

Worked example: Predicting whether a precipitate forms by comparing Q and Kₛₚ (K-A)

Using the reaction quotient (K-A)

Worked example: Using the reaction quotient to find equilibrium partial pressures (K-A)

Worked example: Using the reaction quotient to predict a pressure change (K-A)

Atomic number, mass number, and isotopes (K-A)

Atomic weight and atomic mass (K-A)

Average atomic mass