Question

If mole fraction chloroform in ethanol is 0.2, then the molality of chloroform in the solution is

Answer 1

Given,

Molefraction of the chloroform is $0.2=20$

$Solution=100$

So mole fraction of water is $100-20=80$

So the molality of the ethanol is:

$80\times 46$

$=3680$

For $3680g$of solvent:

$20\times \frac{1000}{3680}=5.43mol$