Posted by Kay Pham on .
The water vapor pressure at 25 degrees celsius is 23.76 torr. If 1.25 grams of water is enclosed in a 1.5 L container, will any liquid be present? If so, what mass of liquid?
I would use PV = nRT and solve for P. If pressure is greater than 23.76 torr, there will be liquid present.
Using PV = nRT, plug in 23.76 converted to atm and solve for n = moles H2O in vapor. Subtract from moles in 1.25 initially. The difference is amount water liquid left.