Question

A solution of H2SO4(aq) with a molal concentration of 5.74 m has a density of 1.238 g/mL. What is the molar concentration of this solution?

Answer 1

Molarity is expressed as the number of moles of solute per volume of the solution while molality is expressed as the number of moles solute per mass of solution. We calculate as follows:

5.74 mol / kg (1.238 kg/L) = 7.10612 mol / L or 7.11 M