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

question 25

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

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