Problem 3 Assuming that the system ethyl methyl ketone (1)/ toluene (2) at 50°C is described by Margarethe equation with A12 = 0.3681, A21 = 0,2046, do the following: a) Calculate the bubble pressure at 50°C of a mixture with z1 = 0.3. b) Calculate the dew pressure at 50°C of a mixture with z10.3. c) A mixture with z1 = 0.3 is flashed to 50°C at pressure such that a stream is received that contains 88%toluene by mol. Determine the percent recovery of toluene in the toluene-rich stream.