This chemistry video tutorial explains how to find the percent composition by mass of each element in a compound using a simple formula. You need to find the molar mass of the entire compound in order to calculate the mass percent of each element. This video contains plenty of examples and practice problems.

General Chemistry 1 Review:
https://bit.ly/3DNmZqb

PDF Worksheet - 160 Questions:
https://bit.ly/37SVLn6