Question

the solution of hydrochloric acid is labelled as 60% (m/m). the density of the solution is 1.1g ml^-1. calculate the concentration of the solution in % (m/m).

Answer 1

the solution of hydrochloric acid is labelled as 60% (m/m)

means, if mass of solution is 100g then, mass of hydrochloric acid is 60g.

because, density of solution is 1.1 g/ml

so, volume of solution = mass of solution/density of solution

= 100/1.1

= 90.9 ml

now we have to find concentration of the solution in % (m/v).

so, concentration of the solution in % (m/v) = mass of solute/volume of solution × 100

= 60 × 100/90.9

= 66 %

hence, answer is 66%

Answer 2

The answer is in the attachment. .