How Many Moles of Nitrogen Are Formed When 58

question 113

Multiple Choice

How many moles of nitrogen are formed when 58.6 g of KNO₃ decomposes according to the following reaction? The molar mass of KNO₃ is 101.11 g mol^-1.
4KNO₃(s) → 2K₂O(s) + 2N₂(g) + 5O₂(g)

• A) 0.290 mol N₂
• B) 0.580 mol N₂
• C) 18.5 mol N₂
• D) 0.724 mol N₂
• E) 1.73 mol N₂

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