This page is an exercise in calculating the equilibrium constant based on changes in initial concentrations and whichever concentration was measurable at equilibrium. When you press "New Problem" a balanced equation and a set of the initial concentrations and one of the concentrations at equilibrium will be displayed. Use the information provided to determine the value of the missing concentration.
To begin, click "New Problem" and a question will appear in the box below the button.
IMPORTANT: Put the correct value into the answer cell and click "Check Answer."
The results on the problem and a running total will appear in the second table.
Pressing "Show Answer" will display the correct value and you will no longer be able to enter an answer for that question. At this time, you'll only get the value, not a detailed explanation.
The javascripting that powers this practice problem generator was produced by Professor George Wiger of California State University Dominguez Hills.