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

Explanation

`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`