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A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The fl...

A volatile organic liquid with known molecular weight is added to a vapor density flask which has a known volume. The flask is heated using a boiling water bath until all of the liquid has evaporated.
After heating for an additional 1 or 2 minutes, the flask is removed from the boiling water bath, corked, and cooled using a room temperature water bath. Predict the mass of condensed vapor.

Temperature of the hot water bath (ºC): 99.4

Volume of the flask (mL): 496.3

Molecular weight of the unknown (g/mol):   131.4

Barometer reading (mm Hg):   760.5

Calculate the mass of condensed vapor in g.

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Answer #1

Temperature, T = 99.4 °C =(99. 4+243) K = 372.4K Volume, v= 496.3 m = 496-3, - o. - 0.4963 1000 L Pye Pressure, p = 760.5 mm

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