1. The problem statement, all variables and given/known data If oxygen gas occupies 25mL at -25 'C and 65 mm Hg. What is the volume at 25 'C and 350 mmHg? 2. Relevant equations P1+P2+P3=Ptotal 3. The attempt at a solution I am really not sure how to do this :( I think maybe I figured it out. Please see below!