Question

4.6 gm of ethanol ,3.2 gm of methanol dissolves in 9 gm of water.calculate the mole fractions of ethanol and water

Answer 1

Answer: Moles of ethanol =4.6/46=0.1

Moles of methnol =3.2/32 =0.1

Moles of water =9/18 =0.5

Explanation:

Mole fraction methanol =

0.1/0.1+0.1+0.5 ==0.142

Mole fraction of ethanol

=0.1/0.1+0.1+0.0.5=0.142

Mole fraction of water =1-0.142-0.142 =0.716