Calculations

This page provides instructions for 4 common lab calculations:

  1. converting volume to mass
  2. calculating molar equivalents
  3. calculating % yield
  4. calculating E-factor, a ‘green chemistry’ measure of experimental efficiency and waste

Significant figures. Always preserve insignificant figures through all of the intermediate steps in any calculation. After you obtain your final numerical result, round it off to an appropriate number of significant figures.