Determining Percent Composition by Combustion Analysis

This page presents analytical data from which you are to determine the mass % composition for a compound of up to four elements.

To begin-press "New Problem " and a description of a compound and its analytical data will be presented.
Enter the mass %s into the cells "Check Answer." You should determine the values to 3 signifcant figures.
The results on the problem and a running total will appear in the table.
You shouldn't attempt this page without having mastered the more fundamental areas of working with chemical compounds.
Pressing the "Show Answer" will display the solution and you will no longer be able to submit an answer for that problem.
INCLUDE A PERCENTAGE SIGN (%) IN EACH ANSWER.

The javascripting that powers this practice problem generator was produced by Professor George Wiger of California State University Dominguez Hills.