Question

A solution contains 20 g of salt in 500 ml of solution. Calculate the concentration in terms of mass by volume percentage.

• A. 10
• B. 20
• C. 1
• D. 4

Answer 1

The correct option is D 4

Mass of solute = 20 g

Volume of solution = 500 ml

Mass by volume percentage $=\frac{\text{Mass of solute}\times 100}{\text{Volume of solution}}$

$=\frac{20\times 100}{500}=4\%$

Hence, the correct option is $\text{D}.$