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You have a liquid-phase mixture of 0.250 mol fraction ethanol and 0.750 mol fraction water at 760.0 mmHg. You'd like to calculate the bubble-point temperature of the mixture, and the composition of the vapor formed at the bubble-point temperature. Assume that the solution behaves ideally and all components follow Raoult's law.
1) What is the bubble-point temperature of the solution?
2) What are the mole fractions of water and ethanol in the vapor phase at the bubble temperature?
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