Question

A solution is prepared by dissolving certain amount os solute in 500g of water. The percentage by mass of a solute in solution is 2.38 . Calculate mass of solute

Answer 1

see the image for the answer

Answer 2

Answer: Mass of solute is 12.2 g

Explanation: Mass percentage is the ratio of mass of solute to the mass of solution in terms of percentage.

Formula used:

$Mass\%=\frac{\text{Mass of solute}}{\text{Mass of solute+mass of solvent}}\times 100$

Given : mass percentage= 2.38

mass of solvent = 500 g

$2.38=\frac{\text{Mass of solute}}{\text{Mass of solute + 500g}}\times 100$

solving for mass of solute:

${\text{Mass of solute}=12.2 g$