How Many Moles of Oxygen Are Formed When 58

question 105

Multiple Choice

How many moles of oxygen 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)23.2 mol O₂
• B)0.580 mol O₂
• C)18.5 mol O₂
• D)0.724 mol O₂
• E)1.73 mol O₂

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