Question

The Van't Haff factor i for the solution of
benzoic acid in benzene is 0.5. Find
degree of association (X) of benzoic acid.
(A) 1
(B) 0.5
(C) 0.1
(D) 1.25​

Answer 1

Answer:

Vant Hoff factor for dissociation -

i =1-a+a/n

where n=

number of particles associated=2

degree of association=a

i=0.5

put value,

0.5=1-a +a/2

-0. 5=-a/2

a=1

option A is right.