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A 5.2 molal aqueous solution of methyl a...

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

A

`0.190`

B

`0.086`

C

`0.050`

D

`0.100`

Text Solution

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The correct Answer is:
B
5.2 mole in 1000 g `H_(2)O`
mole fraction X`= (5.2)/(5.2+(1000)/(18))=0.086`
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