Mass by mass percentage of the solution is a way of expressing [[1]] of the solution.

• The amount of solute that is present in a given amount of solution is known as the concentration of a solution.
• One of the ways to express it is mass by mass percentage. It is given by the formula :

$\mathrm{Mass} \mathrm{by} \mathrm{mass} \mathrm{percentage} \mathrm{of} \mathrm{solution}$ $= \frac{\mathrm{Mass} \mathrm{of} \mathrm{solute}}{\mathrm{Mass} \mathrm{of} \mathrm{solution}}\times 100$