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vapor pressure of ethanol in a 40% alcoholic beverage

At 48 degrees Celsius the vapor pressure of pure ethanol is 180 Torr. What is the vapor pressure of ethanol in a 40% by mass alcoholic beverage heated to 48 degrees Celsius? (In Torr)

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Let's assume the other part of the beverage all pure water.
So basicly, the berverage is a mixture of 40% ethanol and 60% water (in mass).
We can assume that there are 100 ...

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It calculates the vapor pressure of ethanol in a 40% by mass alcoholic beverage. The solution is detailed and was rated '5/5' by the student who posted the question.

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