The vapor pressure of CCl3F at 300K is 856torr. If 11.5g of CCl3F is enclosed in a 1L container, Will any liquid be present? If so, what mass of liquid?

3 answers

If you use PV = nRT, plug in 856 torr for pressure (the vapor pressure of the liquid will be the pressure in the container if there is some liquid remaining) and solve for n.
Convert n to grams and subtract from 11.5

7.5