Answer to Question #269717 in General Chemistry for nedo

Question

The commercial sulphuric acid solution includes 96.4 % H2SO4 by mass. The density of the solution is 1.84 g/mL. Calculate the molarity of the sulphuric acid solution?

Answer 1

Molecular weight of H2SO4 is 98.079 g-mol.

1 ml equals 1.84 g. Hence, 96.4ml equals 96 x 1.84 = 177.376g.

Therefore, 100 ml volume contains 177.376 g H2SO4. So 1 liter contains 1776.4 g.

Hence, the molarity is 1776.4/98.079 = 18.11 M.