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

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%

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Answer 2

☘️ Given :

• Mass of the solute (salt) = 40 g
• Mass of slovent ( water) = 320 g

☘️ Formula we going to use :

Mass of the solution = Mass of solution + Mass of solvent

☘️ Solution :

So, as we know that,

Mass of the solution = Mass of solution + Mass of solvent

= 40 g + 320 g

= 360 g

☘️ Mass percentage of the solution

= Mass of solute/Mass of solution × 100

= 40/360 × 100

= 11.1 %

Therefore, the concentration in the terms of mass by mass percentage of the solution = 11.1 %