Question

mole fraction of metanol alcohol in an aqueous solution is 0.15.the molality of the solution is​

Answer 1

Answer:

13.88

Explanation:

Given that

x

B

=0.2,x

A

=0.8

Now,

Molality (m)=

x

A

×M

A

x

B

×1000

=

0.8×18

0.2×1000

=13.88m

where,

M

A

= molar mass of solvent