Question

At 25°C, the vapor pressure of benzene, C6H6, is 95 torr, snd toluene, C7H8, is 28 torr. Find the total pressure of the solution containing 30% C6H6 and 70% C7H8.

Answer 1

30% of 95torr = 28.5

70% of 28 torr= 19.6

Total pressure = 28.5+19.6= 48.1 torr