Question

A solution contains 50 g of common salt in 340 g of water. What is the concentration of the solution in terms of mass by mass percentage? *

Answer 1

Given:-

→ Mass of common salt (solute) = 50g

→ Mass of water (solvent) = 340g

To find:-

→ Concentration of the solution

[in terms of mass by mass percentage ]

Solution:-

Here, mass of solute and solvent are given. So firstly, let's calculate the total mass of the solution. It can be calculated as follows :-

Mass of solution

= Mass of solute + Mass of solvent

= (50 + 340) g

= 390g

Hence, we have got mass of the solution

as 390g.

Concentration of a solution :-

= Mass of solute/Mass of solution × 100

= 50/390 × 100

= 5000/390

= 12.82%

Thus, concentration of the solution is 12.82% [mass by mass percentage].