A Volatile Compound with a Mass of 0

question 8

Multiple Choice

A volatile compound with a mass of 0.8822 grams is placed in an evacuated 0.250 L flask.The flask is heated to evaporate the compound.At 99°C,the pressure in the flask is 1.25 atm.What is the molar mass of the compound?

• A) 86.2 g/mol
• B) 116 g/mol
• C) 229 g/mol
• D) 257 g/mol
• E) 303 g/mol

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