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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

`1.100`

B

`0.190`

C

`0.086`

D

`0.050`

Text Solution

Verified by Experts

The correct Answer is:
C
`n_(1)(CH_(3)OH)=5.2`
and `n_(2)(H_(2)O)=(1000)/(18)=55.56`
`:.n_(1)+n_(2)=5.20+55.56`
`=60.76mol`
`:.x_(CH_(3)OH)=(n_(1))/(n_(1)+n_(2))=(5.2)/(60.76)=0.0086`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-SOLUTIONS AND COLLIGATIVE PROPERTIES -Exercise 1 (Types of Solutions and Concentration of Solutions)
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