A sample of NH3 (g) occupies 75.0 L at STP. How many moles of nitrogen trioxide would you have? 1)22.4 moles
2)0.299 moles
3) 3.35 moles
4) 75.0

Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]