1. At 20 C the vapor pressure of C6H6 is 75 torr and that of C7H8 is 22 torr. Assume that they form an ideal solution.
(a.) What is the composition of mole fractions of a solution that has a vapor pressure of 35 torr at 20 C?
(b.) What is the partial pressure of C6H6 in the vapor phase? What is the mole fraction of C6H6 in the vapor phase?
2. A solution of 0.64 g of adrenaline in 36.0 g of CCl4 elevates the boiling point by 0.49 C. Is the molar mass of adrenaline calculated from the boiling point elevation in agreement with its structural formula? Kb for CCl4 = 5.02 degrees C/m