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Kmgustafson
Apr 8, 2011, 11:34 AM
Oxygen gas is collected over water at 25 degrees C. The total pressure of the gas is 780.00 mm Hg. What is the partial pressure of the dry oxygen gas?

DrBob1
Apr 8, 2011, 11:50 AM
Why do you think it matters that the gas was collected over water?
Why would the pressure of oxygen would be different than the measured 780mm?
What do you know about Dalton's Law of Partial Pressures?