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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.
Some approximations of pi include: 1  Integers: 3. 2  Fractions: Approximate fractions include (in order of increasing accuracy) 227, 333106, 355113, 5216316604, 10399333102, and 24585092278256779. 3  Decimal: The first 50 decimal digits are 3.14159265358979323846264338327950288419716939937510...