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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.
0 1. An improper fraction is a fraction where the numerator is greater than the denominator, such as 35/6 or 9/2. First, convert your mixed number to an improper fraction. 4 1/2 = (4/1)(2/2) + (1/2) = 8/2 + 1/2 = 9/2. So 9/2 is one improper fraction that equals 4 1/2.