What are the partial pressures of oxygen and carbon dioxide in a tank containing 52.5 g of oxygen and 65.1 g of carbon dioxide at 27°C with a total pressure of 9.21 atm?

a) 4.52 atm, 4.69 atm
b) 5.21 atm, 3.00 atm
c) 2.34 atm, 6.87 atm
d) 3.15 atm, 6.06 atm