Chapter 14, Problem 115E

Interpretation Introduction

Interpretation:

The molarity of sulfuric acid in the given solution is to be calculated.

Concept introduction:

a) Dilution of a solution will not change the number of moles of solute, it will just change the number of moles of solute per volume of solution. b) The percentage by mass means that the amount of solute is dissolved in 100 g of solution. c) Molarity is defined as moles of solute per unit volume of solution in liters.

Given:

Density of 49 % H₂SO₄ solution = 1.39 $\frac{\text{g}}{{\text{cm}}^{\text{3}}}$ at 293K

Initial volume of H₂SO₄ solution taken = 25 cm³

Final volume of H₂SO₄ solution = 99.8 cm³