Question

250 cc of H2SO4 solution contains 24.5 g of H2SO4 if the density of solution is 1.98 g/cc determine malarity and molality

Answer 1

Molarity of the solution = (mass x 1000)/ (molar mass x volume in ml). Therefore, molarity will be equal to 1 M.

For molality, mass of the solution = Density x volume = 495 g. Mass of the solvent = 495-24.5 = 470.5g. Molality = (mass of acid*1000)/(molar mass* mass of solvent in grams) = 0.531 m.