Question

A solution contains 40 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.

Answer 1

Mas of common salt (solute)=40 g

Mass of water (soluted) =320 g

mass of solution=$320+40$

=360 g

concentration of solution=$\frac{M_{mass}ofsolute}{massofsolution}\times 100$

$\frac{40}{360}\times 100=11.11$

Hence, the concentration of the solution is 11.11%