Question

Mole fraction of solute is 0.2. number of moles of
solvent are 4, then the number of moles of solute are
3.8
4.2
1.0
Zero​

Answer 1

Answer:

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,

Explanation:

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