Question

A 4.49 g sample of a laboratory solution contains 1.49 g of acid. What is the concentration of the solution as a mass percentage?

Answer 1

Answer – We are given, mass of acid = 1.49 g , mass of sample = 4.49 g

We know the,

mass percentage = mass / total mass * 100 %

mass percentage of acid = 1.49 g / 4.49 g * 100 %

                                       = 33.2 %

the concentration of the solution as a mass percentage is 33.2 %