A solution of H2SO4aq with a molal concentration of 525 m ha

A solution of H2SO4(aq) with a molal concentration of 5.25 m has a density of 1.266 g/mL. What is the molar concentration of this solution? Number 6.6465

Solution

5.25 molal means 5.25 moles of H₂SO₄ is present in 1 kg of water

weight of H₂SO₄=number of moles*molar mass=5.25*98=514.5 g

weight of water=1000 g

Total weight of solution =1000+514.5 =1514.5 g

density of solution=mass/volume

volume of solution=mass/density =1514.5/1.266 =1196.2875 ml

Molarity = number of moles/volume of the solution in litres

=5.25/1.196 =4.388 M