Question

1.
The density of 2 M aqueous solution of NaOH is 1.28
g/cm3. The molality of the solution is [Given that
molecular mass of NaOH = 40 g mol-1]
[NEET-2019 (Odisha)
(1) 1.32 m
(2) 1.20 mai
(3) 1.56 m
(4) 1.67 m​

Answer 1

The relation between Molality , Molarity and density is m=1000m/(1000d-2m.m). Therefore, the Molality of the solution is 1.67M

Hope It Helps Uhh.