1.

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

Answer»

`0.75 ,0.25`
`0.25,0.75`
`0.5,0.5`
`0.90,0.10`

Solution :`0.25 ,0.75`
SOL :molefractionof ethanol
`=( "Numberof MOLESOF ethanol ")/(" TOTALNUMBEROF molesof ethanoland WATER ")`
`= ( 0.5 )/( 1.5+0.5 ) = ( 0.5) /( 2.0 ) = 0.25`
Molefractionof water`=( 1.5 )/( 2.0 ) =0.75`


Discussion

No Comment Found