Problem 1: Liquid A and B are mixed together. The vapor pressure of pure A is 1.30 atm at the normal boiling point of a solution prepared from 0.500 mole of B and 0.850 mole of A. What i

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• : Liquid A and B are mixed together. The vapor pressure of pure A is 1.30 atm at the normal boiling point of a solution prepared from 0.500 mole of B and 0.850 mole of A. What is the vapor pressure of the solution if there was a positive deviation of 50 Torr? (Take 1 Torr $= 0.00132$ atm)

  This problem is missing the vapor pressure of pure B ($P_B^\circ$). Without $P_B^\circ$, it is not possible to calculate the ideal vapor pressure of the solution using Raoult's Law ($P_{solution, ideal}