Elements, moles and masses
This page provides exercises in relating elements, masses and moles. When you
press "New Problem" a problem will be presented above the table. Put the correct value in the answer cell and press
"Check Ans." Results appear in the second table. You need a periodic table or list of
elements and atomic weights to use this page.
- If you miss a problem three times, pressing the "Show Answer" will cause the correct answer to appear.