A solution of H 2 SO 4 is 31 . 4 % H 2 SO 4 by mass and has a density of 1 . 25 g / mL . The molarity of the H 2 SO 4 solution is M (nearest integer) [Given molar mass of H 2 SO 4 = 98 g mol - 1 ]

Step-by-step solution

Given, Density= 1 . 25 g / mL , Molar mass of H 2 SO 4 = 98 g mol - 1 Molarity is defined as no. of moles of solute present in one litre of solution. Thus, Molarity= No . of moles of solute Volume of solution in L No. of moles= mass/ molar mass M = n solute V × 1000 = 31 . 4 98 100 1 . 25 × 1000 = 4 . 005 ≈ 4