If a solution contains 60 g of common salt in 340 g of water, the mass by mass percentage will be:
The correct option is (A) 15%
Mass by mass percentage of a solution = MassofsoluteMassofsolution×100
Mass of solvent =340g
Mass of solute =60g
Mass of solution =60+340=400g
Mass by mass percentage of a solution = 60400×100 = 15%