Question

calculate the mass of potassium chloride required to prepare its 25% solution in hundred gram of water​

Answer 1

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