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An Unknown Liquid Is Vaporized in a 273-ML Flask by Immersion

Question 34

Multiple Choice

An unknown liquid is vaporized in a 273-mL flask by immersion in a water bath at 99°C. The barometric pressure is 753 torr. If the mass of the vapor retained in the flask is 1.362 g, what is its molar mass?


A) 20.4 g/mol
B) 40.9 g/mol
C) 112 g/mol
D) 154 g/mol
E) 184 g/mol

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