(Solution) - At 63 5 oC the vapor pressure of H2O is 175 -(2025 Original AI-Free Solution)

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At 63.5 oC the vapor pressure of H2O is 175 torr, and that of ethanol (C2H5OH) is 400 torr. A solution is made by mixing equal masses of H2O and C2H5OH.
(a) What is the mole fraction of ethanol in the solution?
(b) Assuming ideal-solution behavior, what is the vapor pressure of the solution at 63.5 oC?
(c) What is the mole fraction of ethanol in the vapor above the solution?