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General Chemistry 1 Midterm - Part 4 of 4
SAMPLE
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7. Gases / The Ideal Gas Law: Molar Mass / Problem 4
Problem 4

Calculate the molar mass of the unknown liquid using the given information obtained via the Dumas method:
mass of vapor = 1.3214 g
volume of flask = 500 mL
pressure = 754.3 Torr
temperature = 99.43 ºC