Students learn how to determine the percentage composition of a compound. Percent Composition and Empirical Formulas: Students learn how to determine the percentage composition of a compound and to ...

\({\%~of~an~element} = \frac{mass~of~an~element~in~the~compound}{relative~formula~mass~M_r} \times 100\) There are six atoms of hydrogen in the compound, so the mass ...