Question

What will be the molarity of 0.1 molal h2so4 solution having density 1.2 g/ml?

Answer 1

Molality of the solution = 0.1

This means, no. of moles of the sulphuric acid in 1 kg of the solution is 0.1

Density of the solution = 1.2 g/ml.

This, means,

Density = Mass/Volume

1.2 g/ml. = 1000g/ Volume

∴ Volume = 1000/1.2

∴ Volume = 833.33 mL. = 0.83 L.

Now, Molarity = No of moles/Volume of solution

∴ Molarity = 0.1/0.83

∴ Molarity = 0.12 M.

Hope it helps.

Answer 2

Answer:

Question :-.

• What will be the molarity of 0.1 molal h2so4 solution having density 1.2 g/ml?

Solution :-

. Density of the solution = 1.2 g/ml.

∴ Volume = 833.33 mL.

= 0.83 L.