An Important Reaction Sequence in the Industrial Production of Nitric $\rightarrow$

question 53

Multiple Choice

An important reaction sequence in the industrial production of nitric acid is the following:
N₂(g) + 3H₂(g) $\rightarrow$ 2NH₃(g)
4NH₃(g) + 5O₂(g) $\rightarrow$ 4NO(g) + 6H₂O(l)
Starting from 20.0 mol of nitrogen gas in the first reaction, how many moles of oxygen gas are required in the second one?

• A) 12.5 mol O₂
• B) 20.0 mol O₂
• C) 25.0 mol O₂
• D) 50.0 mol O₂
• E) 100. mol O₂

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