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A company wishes to distill a 0.830 mole fraction ethanol (0.170 mole fraction water) solution. To aid in the distillation process, a 0.950 mole fraction benzene (0.050 mole fraction water) mixture containing fresh benzene and a recovered benzene solution is added.
A = 4 A- = 3.666 B+ = 3.333 B = 3 B- = 2.6666 C+ = 2.333 C = 2 C- = 1.666 D+ = 1.333 D = 1 D- = 0.666 F = 0 there you have it.