Question

What is concentration of a solution?
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

Molar concentration is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.

Mas of common salt (solute)=40 g

Mass of water (soluted) =320 g

mass of solution=320+40

=360 g

concentration of solution=

massofsolution

M

mass

ofsolute

×100

360

40

×100=11.11%

Hence, the concentration of the solution is 11.11%

Answer 2

Answer:

11.11 %

Explanation:

Concentration = mass of solute / mass of solution × 100

Given

Mass of Solute = 40 g

Mass of Solvent = 320 g

We know that,

Solution= Solute + Solvent

Therefore, Mass of Solution = 40g + 320g = 360g

Concentration= 40g / 360g × 100

= 10 / 9 × 10

= 11.11 %

Hope this helps you :)