Question

Calculate the pressure in an evacuated 250mL container at 0 degrees C when the O2 in 1.00 cm^3 of liquid oxygen evaporates. Liquid oxygen has a density of 1.118 g/cm^3.

Answer 1

grams O2 = density x volume = 1.118 g/cc x 1 cc = ?

mols O2 = n = grams/molar mass = ?
Then use PV = nRT and solve for P. Remember to use K for temperature and L for volume.