Question

Calculate the mass of potassium chloride required to prepare 40% solution in 100g

Of water.

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Answer 1

Explanation:

Let x g be the mass of potassium sulphate.

We know that:

Mass by mass percentage of a solution =

Massofthesolution

Massofthesolute

×100

100

10

=

100+x

x

x=11.1g