Two liquids, A and B, form an ideal solution. Liquid A has a molar mass of 95.1 g mol-1 and liquid B a molar mass of 64.3 g mol-1. At 25 oC, the vapour pressure of A is 92.8 torr and that of B is 77.2 torr. For a mixture containing 50 g of each liquid, calculate
(i) the mol fractions of A and B in the liquid,
(ii) the partial pressures of A and B,
(iii) the total pressure,
(iv) the mol fractions of A and B in the gas phase.
(v) Comment on the differences between your answers to (i) and (iv).