92 g. of ethanol is dissolved in 108g. Of water. The mole fraction of water in the solution is
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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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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