Question

The density of 2M aqueous solution of NaOH is 1.28 g/cm3 .The molality of solution is _________ ( Given molecular mass of NaOH =40 g per mol )


(a) 1.32 m
(b) 1.20 m
(c) 1.56 m
(d) 1.67 m​

Answer 1

Answer:

1.67 m is right answer

m=molal