Determine the solubility of a sodium sulfate, Na2SO4, in grams per 100g of water, if 0.94 g of Na2SO4 is dissolved in 20 g of water to make a saturated solution.

Answer 1

0.94g Na2SO4/20 g H2O
0.94 g Na2SO4 x (100g/20g) = ? g Na2SO4/100 g H2O

Answer 2

4.7 grams per 100g of H2O