Empirical Formulas From Percent Composition

To begin-press "New Question" and a question appears to the right of the table
Determine the empirical formula and follow the instructions for submitting your results.
The results on the problem and a running total will appear in the second table.
If you get a problem "incorrect", you should redo it and recheck your answer.
Pressing the "Show Answer" will display the solution and you will no longer be able submit an answer for that problem.

Results	Total Done	Total Correct