A known amount of gaseous ammonia and gaseous oxygen were mixed in a closed container according to the following reaction:
4NH3 (g) + 5O2 (g) → 4NO (g) + 6H2O (g)
It was experimentally determined that oxygen was the limiting reagent and was completely used up during the course of the reaction. If you started the process with 45.37 grams of ammonia (NH3) and you have 19.27 grams of ammonia left over at the end of the reaction, how much gaseous oxygen was actually consumed during the experiment?
A) 34.50 g
B) 61.27 g
C) 45.23 g
D) 106.5 g
E) 39.21 g
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