Question

A solution contains 40g of common salt in 320g of water. Calculate the concentration in terms of. (i) Mass by mass percentage of the solute. (ii) Mass by mass percentage of solvent.

Answer 1

Answer:

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

$\huge \tt \color{blue}{answer➻1}$

mass of common salt (solute)= 40 gram

mass of water (soluted)= 320 gram

mass of solution= 320g + 40g

⠀⠀⠀⠀⠀⠀⠀⠀⠀= 360 gram

$\huge \tt \color{lime}{answer➻2}$

concentration of solution= mass of solution

mass of solute=

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀360

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀40

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀×100 = 11.11%j

$\huge \tt \color{navy}{final~answer➻3}$

Hence, the concentration of solution is 11.11%