Question

A solution contains 50 g of common salt in 400 g of water. Calculate the concentration by mass percentage of the solution.

• A. 12.50%
• B. 14.27 %
• C. 11.11%
• D. 9.09 %

Answer 1

The correct option is C

11.11%

mass of solute= 50g

mass of solvent = 400g

mass of solution = mass of solute + mass of solvent

$=50+400$

$=450g$

mass percentage of solution $=\frac{\text{mass of solute}}{\text{mass of solution}}\times 100=\frac{50}{450}\times 100=11.11\%$.