Question

The molality of 1 litre solution of 93% H₂SO₄ (w/v) having density 1.84 g/ml is : 

(a) 1.043 m 

(b) 0.143 m 

(c) 10.43 m 

(d) none of these

Answer 1

Correct option (c) 10.43 m

Explanation:

93% H₂SO₄ (w/v) means 93 g. of H₂SO₄ is present in 100 c.c. of solution. Since vol. of solution = 1000 ml 

∴ Amount of H₂SO₄ = 930 gper 1000 ml