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27. The vapor pressure of pure water at 15 °C is 12.8 mm Hg. What is the equilibrium vapor pressure of water above a mixture of 72.0 g ethanol (CH;CH20H, molar mass 46.07 g/mol) and 22.0 g water? a. 2.84 mm Hg b. 5.61 mm Hg c. 7.19 mm Hg d. 10.0 mm Hg e. 12.8 mm Hg
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