Mass and Formulas of Hydrocarbons

This page is an exercise in mass calculations based on the formula of a chemical compound.

To begin, press "New Problem" and a formula will appear in the left cell and a value will appear in one of the remaining three cells. The compounds are relatively simple, containing only C and H
In the solution presented, "H(formula)" represents the mass of H per mole of compound while "H mass" is the mass of H in the current sample.
In the solution presented, "C(formula)" represents the mass of C per mole of compound while "C mass" is the mass of C in the current sample.
Enter the correct masses in the remaining two cells and press "Check Answer."
The results and running totals appear in the second table.
Pressing the "Show Answer" will cause the correct answer to appear and you will no longer be able to submit an answer for that problem.

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