The volatile liquids A and B, for which P * A = 165 Torr and P *
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The volatile liquids A and B, for which P*A = 165 Torr and P*B = 85.1. Torr are confined to a piston and cylinder assembly. Initially, only the liquid phase is present. As the pressure is reduced, the first vapor is observed at a total pressure of 110. Torr. Calculate xA.
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