# Calculating K from Concentration Change

This page is an exercise in calculating the equilibrium constant. When you press "New Question" a a balanced equation and a partial set of concentrations will be displayed to the right of the table. Use the information provided to determine the value of K. Enter it in the answer cell and press "Check Answer." To enter numbers in scientific notation use "e" notation. The results and score appear in the table.

- Pressing "Show Answer" will cause a complete solution to appear and you will no longer be able to submit an answer to that problem.