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A 5.2 molal aqueous of methyl alcohol, C...

A `5.2` molal aqueous of methyl alcohol, `CH_(3)OH`, is supplied. What is the molefraction of methyl alcohol in the solution ?

A

0.19

B

0.086

C

0.05

D

0.1

Text Solution

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The correct Answer is:
B
Mole fraction of solute `(X_(2))` in aqueous solution
`= ( m )/( m + (1000)/( 18))=( 5.2)/( 5.2 + (1000)/( 18)) = 0.09`
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