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.



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Answer 1

Answer:

Mass  of common salt (solute)=40 g

Mass of water (soluted) =320 g

mass of solution=320+40

              =360 g

concentration of solution=  

massofsolution

mass

​  

of solute

​  

×100

360

40

​  

×100=11.11%

Hence, the concentration of the solution is 11.11%

Explanation: