Using fractional distillation, a mixture of ethanol and water is heated and the vapors at 78.3 degrees Celsius carefully condensed and collected. What is the percent by weight composition of this distillate and the composition of this distillate in mole fraction? The CRC Handbook of Chemistry and Physics Online has info on binary azeotropes.
a) The percent by weights are 76.4%/23.6% ethanol/water and the mole fractions are 0.649/0.351 ethanol/water.
b) The percent by weights are 76.4%/23.6% ethanol/water and the mole fractions are 0.782/0.218 ethanol/water.
c) The percent by weights are 95.6%/4.4% ethanol/water and the mole fractions are 0.893/0.107 ethanol/water.
d) The percent by weights are 95.6%/4.4% ethanol/water and the mole fractions are 0.754/0.246 ethanol/water.
e) The percent by weights are 100%/0% ethanol/water and the mole fractions are 1/0 ethanol/water.