Simon Fraser University
Chem1 Virtual Textbook: How to Write Equilibrium Expressions
Acting as an overview from the General Chemistry Virtual Textbook, this site explores a range of topics related to equilibrium expressions including concentrations and pressures in equilibrium expressions, unchanging concentrations,...
Other
Rensselaer Polytechnic Institute: Chemical Equilibrium
This site from the Rensselaer Polytechnic Institute provides an introduction to chemical equilibrium, covering equilibrium expressions, the pH scale, and presenting how to plot log concentration diagrams.
State University of New York
State University of New York: Equilibrium Expressions
In this module students are asked to build the equilibrium constant expression for the reaction shown.
Other
New Mexico State University: Chemical Equilibrium
A one page tutorial which teaches the viewer how to predict and write equilibrium expressions and use them to calculate equilibrium concentrations. Discusses Le Chatelier's Principle.
Shodor Education Foundation
Shodor: Equilibrium
A presentation of the basics of chemical equilibrium, covering equilibrium expressions, Le Chatelier's principle, and sample calculations.