The vapor pressures of benzene and toluene are 400 and 139 torr respectively, at 60.0*C. A) Calculate the vapor pressure of a solution consisting of a 40.0g toluene and 60.0g of benzene. B) Calculate the mole fraction composition of the two components in the vapor phase above this solution. C) Identify a and b as being a part of the bubble point curve, of dew point curve for the mixture of benzene and toluene.