Mass and Mole Relationships in Chemical Formulas

• To start, press "New Problem" and it will appear in the top frame.

• Determine the value of the answer, enter it in the cell and press "Check Answer". Results appear in the table.

• Each time you press "New Problem", you are guaranteed to get a problem you have never seen before.

If you miss a problem three times, pressing "Show Answer" will cause the correct answer to appear.