Homework Help: General Chemistry

Posted by Kathy on Monday, September 5, 2011 at 6:20pm.

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A 3.00L sample of gas was collected over water at 45 degrees Celsius. The wet gas exerts pressure of 1.50atm. When dried the sample occupies 1.80L and exerts a pressure of 1.77 atm at 80.0 degrees Celsius. What is the vapor pressure of water at 45 degrees Celsius?

My answer = 0.54atm

General Chemistry - DrBob222, Monday, September 5, 2011 at 9:37pm
I wonder if this is a made up problem. I looked up the vapor pressure of H2O at 45C and found 71.9 mm Hg which is 0.0946 atm.

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