Question

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

Answer 1

Mass of salt ( solute ) = 40 g

Mass of water ( solvent ) = 320 g

Mass of solution ⇒ 40 + 320 = 360 g

Concentration :-

$\sf{{\dfrac{mass~of~solute}{mass~of~solution}} \times{100}} \\\\ ⇒ \sf{{\dfrac{40}{360}} \times{100} = 11.11 }$

So the concentration of solution is 11.11 %