During a laboratory experiment, 36.12 grams of al2o3 was formed when o2 reacted with aluminum metal at 280.0 k and 1.4 atm. what was the volume of o2 used during the experiment? 3o2 4al → 2al2o3 8.70 liters 9.22 liters 10.13 liters 12.81 liters