Question

3.36 M sulphuric acid solution is 29% H₂SO₄ calculate the density of the solution.

Options

• 1.00 gm^–1

• 1.22 gm^–1

• 1.51 gm^–1

• 2.00 gm^–1

Answer 1

1.22 gm^–1 

Explanation:

Calculation of the mass of solution.

Mass of H₂SO₄ in 3.6 m solution = 3.6 mol × 90 g mol^–1

29% H₂SO₄ means that = 352.8 g

29 g of H₂SO₄ are present in solution = 100 g

B = 2.8 g of H₂SO₄ are present in solution = `(100  g)/(29  g) xx 352.8  g` = 1216.5 g

Density of the solution = `"Mass of solution"/"Volume of solution"`

= `1216.5/(100  mL)`

= 1.22 gm^–1