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a. Suppose that a liquid mixture of 4.0 mol% n-hexane in n-octane is vaporized. What is the composition of the first vapor formed if the

a. Suppose that a liquid mixture of 4.0 mol% n-hexane in n-octane is vaporized. What is the composition of the first vapor formed if the total pressure is 1.00 atm. 

b. Calculate the fraction of liquid that will remain at equilibrium when a mixture of 68.6 mass % Hexane and 31.4 mass % toluene is vaporized at 80 degree c and 1atm.

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