A Medical Company Separates Methanol (CH₃OH)) and Ethanol (CH₃CH₂OH) by Distillation

Multiple Choice

A medical company separates methanol (CH₃OH) ) and ethanol (CH₃CH₂OH) by distillation. In one run, the starting solution was 25% methanol and 75% ethanol by mass at 25°C. In the liquid, the mole ratio of methanol to ethanol was ________, and in the vapor it was ________. The vapor pressures for methanol and ethanol at this temperature are 92 torr and 45 torr, respectively.

A) 0.48; 2.0
B) 2.0; 0.48
C) 0.33; 2.0
D) 0.48; 0.33
E) 2.3; 0.55