At a pressure of 760 torr, formic acid (HCOOH; boiling point = 100.7 oC) and water (H2O; boiling point = 100.0 oC) form an azeotropic mixture, boiling at 107.1 oC, that is 77.5% by mass formic acid. At the boiling point of the azeotrope (107.1 oC), the vapor pressure of pure formic acid is 917 torr, and that of pure water 974 torr. If the solution obeyed Raoult's law for both components,

a)what would be the vapor pressure (in torr) of formic acid at 107.1 oC?

b)If the solution obeyed Raoult's law for both components, what would be the vapor pressure of the water (in torr) at 107.1

Question

At a pressure of 760 torr, formic acid (HCOOH; boiling point = 100.7 oC) and water (H2O; boiling point = 100.0 oC) form an azeotropic mixture, boiling at 107.1 oC, that is 77.5% by mass formic acid. At the boiling point of the azeotrope (107.1 oC), the vapor pressure of pure formic acid is 917 torr, and that of pure water 974 torr. If the solution obeyed Raoult's law for both components, 

a)what would be the vapor pressure (in torr) of formic acid at 107.1 oC? 

b)If the solution obeyed Raoult's law for both components, what would be the vapor pressure of the water (in torr) at 107.1