chemistry
posted by mike .
The vapor pressure of water at 25.0 C is 23.8 mm Hg. If 250. mL of water is placed in a chamber with a volume of 1.00 cubic meters, how many mL of water will evaporate

PV=nRT
YOu know P, V,R, T solve for n.
then, grams water=n*molmass water
and finally, ml of water=gramswater*1ml/1gram