Question

Calculate the mass of potassium sulphate to required to percent to its 10% (mass percent) mass percent solution in 100 gram of water

Answer 1

Mass percent = (Mass of solute / Mass of solution) × 100

(m/m)% = [m / (m + M)] × 100

10 = [m / (m + 100)] × 100

0.1 = m / (m + 100)

0.1m + 10 = m

0.9m = 10

m = 11.11 grams

Mass of potassium sulfate = 11.11 grams