Question

What is the percent by mass of 54.7g of calcium chloride dissolved in 500g of water?

Answer 1

% by mass = (mass solute/mass solution)*100%
mass  of the solute = 54.7 g
mass of the solution = mass solute + mass solvent=54.7+500=554.7 g
% by mass = (54.7/554.7)*100%≈0.0986*100% = 9.86%