Question

Calculate the mole fraction of dichloromethane and trichloromethane. When 35 gm of dichloromethane is dissolved in 75 gm of trichloromethane.

Answer 1

35 gm of dichlorimethane means 0.411 moles.

75 gm of trichloromethane means 0.628 moles .

Mole fraction of dichloromethane=no of moles of dichloromethane/ total no of moles

= 0.411/1.039=0.3955

Mole fraction of trichloromethane= 1-0.3955= 0.6045