Question

A solution is prepared by dissolving 10 grams of solute in 100 grams of water. Calculate the mass percentage of the solution.

• A. 9.09%
• B. 10%
• C. 9.90%
• D. 10.09%

Answer 1

The correct option is A 9.09%

Mass percentage is used to measure the concentration of a solution. A solution contains solute and solvent.

Mass percentage of a solution $=\frac{\text{Mass of the solute}}{\text{Mass of the solution}}\times 100$

Given, mass of solute = 10 g
mass of solvent = 100 g
The total amount of solution = 10 + 100 = 110 g

Mass percentage of a solution = $\frac{10}{110}\times 100=9.09\%$