A solution is prepared by dissolving 10 grams of solute in 100 grams of water. C

Question

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

Options:

A . 9.09%

B . 10%

C . 9.90%

D . 10.09%

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

= \frac{Mass of the solute}{Mass of the solution} \times 100

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

\frac{10}{110} \times 100 = 9.09 %

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