Question

show the solution
what is the percent by mass concentration of a solution that contains 6.40 grams of salt dissolved in 20.7 g in water?

Answer 1

Explanation:

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Answer 2

Explanation:

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%