An Important Reaction Sequence in the Industrial Production of Nitric

question 3

Multiple Choice

An important reaction sequence in the industrial production of nitric acid is the following: N₂(g) + 3H₂(g) → 2NH₃(g)
4NH₃(g) + 5O₂(g) → 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 O ₂
• B)20.0 mol O ₂
• C)25.0 mol O ₂
• D)50.0 mol O ₂
• E)100. mol O ₂

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