Question

A solution contains 30g of commons salt in 280g water. 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%

Explanation:

Answer 2

Answer:

mass of solvent / mass of solution ×100

mass of solution = 30 + 280 =310

30/310×100= 9.67 percent

therefore the concentration of the solution is 9.67 percent

Explanation:

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