12. Ammonia reacts with oxygen gas to form an oxide and water in a double displacement
(metathesis) reaction. When 25.0 g NH3 and 35.0 g O2 react according to the reaction:
NH3 + 5O2 → NO + 6H2O
If 23.76 g of NO is formed in this experiment, what is the percentage yield? (3)
A. 90.5 %
B. 54 %
C. 27.6 %
D. 59.6 %
E. 95 %
