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The vapor pressure of ethanol(C 2 H 5 OH) at 20 degrees Celcius is 44 mmHg,and t

ID: 676459 • Letter: T

Question

The vapor pressure of ethanol(C2H5OH) at 20 degrees Celcius is 44 mmHg,and the vapor pressure of methanol (CH3OH) at the sametemperature is 94 mmHg. A mixture of 30.0g of methanol and 45.0 gof ethanol is prepared (and can be assumed to behave as an idealsolution).

(a). Calculate the vapor pressure of methanol and ethanolabove this solution at 20 degrees Celcius.

(b). Calculate the mole fraction of methanol and ethanol in thevapor above this solution at 20 degrees Celcius.

(c). Suggest a method for seperating the two components of thesolution.

Explanation / Answer

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