Question

Calculate the mass of potassium sulphate required to prepare its 10% solution in 100 g of water.

Answer 1

Let x g be the mass of potassium sulphate. 

We know that 

Mass by mass percentage of a solution = \(\frac{Mass\,of\,the\,solute}{Mass\,of\,the\,solution}\times100\)

\(\frac{10}{100}=\frac{X}{100+X}\)

x= 11.1g