Hello! This problem is driving me nuts! The vapor pressure of ethanol (C2H5OH) a

Question

Hello! This problem is driving me nuts! The vapor pressure of ethanol (C2H5OH) at 20*C is 44 mmHg, andthe vapor pressure of methanol (CH3OH) at the same temperature is94 mmHg. A mixture of 35.0g of methanol and 45.0 g of ethanolis prepared (assume it behaves as an ideal solution). Calculate the mole fraction of both ethanol and methanol in thevapor above this solution at 20*C. Been stuck on it for an hour, no luck. Any help would begreatly appreciated! Thanks Hello! This problem is driving me nuts! The vapor pressure of ethanol (C2H5OH) at 20*C is 44 mmHg, andthe vapor pressure of methanol (CH3OH) at the same temperature is94 mmHg. A mixture of 35.0g of methanol and 45.0 g of ethanolis prepared (assume it behaves as an ideal solution). Calculate the mole fraction of both ethanol and methanol in thevapor above this solution at 20*C. Been stuck on it for an hour, no luck. Any help would begreatly appreciated! Thanks

Explanation / Answer

Mass of methanol = 35 g

Molar mass = 32.04 g/mol

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