Vapour pressure of chloroform
(CHCl3) and dichloromethane
(CH2Cl2) at
25oC are 200 mm Hg and 415 mm Hg respectively. Vapour pressure of the solution obtained by mixing 25.5 g of
CHCl3 and 40 g of
CH2Cl2 at the same temperature will be:
[Molecular mass of CHCl3=119.5 g/mol and molecular mass of CH2Cl2=85 g/mol]