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The Vapor Pressure of Pure Water at 15 °C Is

Question 46

Multiple Choice

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 (CH3CH2OH,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

Correct Answer:

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