Question

2.Molarity of H,so, is 0.8 M and its density is 1.06 g/mL. What will be the molality of solution and mole fraction of
H2SO, ?​

Answer 1

Answer:

1000 ml solution contains 0.8 mol of H

2

SO

4

Mass of solution = 100cm

3

×1.06

cm

3

g

= 1060g

Mass of solute (H

2

SO

4

) =0.8 x98 =78.4g

Mass of solvent = 1060 -78.4 =981.6g

Molarity =

massofsolvent(kg)

molesofH

2

SO

4

=

981.6×10

−3

0.8

= 0.814m