Question

20% (w/v) aqueous solution of H2SO4 has density 1.2 gm/mL, then molality (m)
of solution will be
1.02 m
2.04 m
(1)
(2)
(3)
(4)
3.5 m
4.20 m​

Answer 1

Answ   opt  2

Explanation:

molarity = w/w%  x   d x 10/molarmass

1/molality = d/molarity -molarmass/1000

substitute then u will get 2.05m