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. 4 KNO₃(s)→ 2 K₂O(s)+ 2 N₂(g)+ 5 O₂(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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Quizplus · Accepted Answer

First, calculate the moles of KNO₃ decomposed: 58.6 g / 101.11 g/mol = 0.579 mol. According to the reaction, 4 moles of KNO₃ produce 2 moles of N2, so 0.579 mol of KNO₃ will produce (0.579 mol / 4) * 2 = 0.290 mol of N2.

How Many Moles of Nitrogen Are Formed When 58