Question

A solution of alcohol in water has been prepared by mixing 100 male of alcohol in 300 male of water. Calculate the volume of percentage of solution. And this please I want this for my exam

Answer 1

mass of solute/ volume of solution × 100

=>100ml/400ml × 100= 25%

Answer 2

%(v/v) = (Volume of solute / Volume of solution) × 100
= [(100 ml) / (300 ml + 400 ml)] × 100
= 20

Concentration of solution is 20% (v/v)