Calculate the mass percent of sulfur in using the following atomic masses: Al , S , O .

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Calculate the mass percent of sulfur in

\text{Al}_2(\text{SO}_4)_3

using the following atomic masses: Al

=27.0\,\text{g mol}^{-1}

, S

=32.1\,\text{g mol}^{-1}

, O

=16.0\,\text{g mol}^{-1}

. (a) 9.39\% (b) 28.1\% (c) 33.4\% (d) 18.7\%