Posted by regina on Saturday, December 4, 2010 at 11:35pm.
You don't make it clear if the pressure of the WET hydrogen is 1.23 atm or the pressure of the DRY hydrogen is 1.23. If it is dry, then use PV = nRT and use 1.23 for pressure. If it is WET, look up vapor pressure H2O @ 45 C, convert to atm, and subtract from the 1.23 and use that in PV = nRT. The volume of water is done use PV = nRT also but use vapor pressure of the water to find volume water.
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