Chemistry

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A mixture of miscible liquids containing 6 moles of A and 4 moles of B is distilled 1 atm (760 mm Hg) of pressure. The initial distillate was analyzed and found to contain 20 mole percent A and 80 mole percent B.
a.) What are the partial vapor pressures of A and B in the initial mixture?
b.) What are the vapor pressures of pure A and B?

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