The Vapor Pressure of Pure Ethanol at 60 °C Is

Multiple Choice

The vapor pressure of pure ethanol at 60 °C is 0.459 atm.Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapor pressure of ________ atm.

A) 0.498
B) 0.413
C) 0.790
D) 0.367
E) 0.0918