92 g. of ethanol is dissolved in 108g. Of water. The mole fraction of water in the solution is
A. 0.25
B. 0.75
C. 0.5
D. 0.35

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1 Answers

Correct Answer - A
`"Moles of ethanol"="Mass"/("Molar Mass")=92/46=2`
and moles of water `= 108/18=6`
mole fraction of ethanol `=2/(2+6)=0.25`

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