1.

0.5 mole of ethanol is mixed with 1.5 mole of water. Then the mole fraction of ethanol and water are ……………..

Answer»

SOLUTION :`0.25, 0.75`
MOLE fraction of ethnol `= ("NUMBER of moles of ETHANOL")/("Total number of moles of ethanol and WATER")`
`=(0.5)/( 1.5 + 0.5) = (0.5)/(2.0 = 0.25`
Mole fraction of water `= (1.5)/( 2.0) = 0.75`


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