What Volume of Oxygen,measured at STP,can Be Produced by the Decomposition

question 43

Multiple Choice

What volume of oxygen,measured at STP,can be produced by the decomposition of potassium chlorate if 20.0 g of the salt (KClO₃) is completely decomposed into potassium chloride and oxygen gas?

• A)1.83 L
• B)2.44 L
• C)3.66 L
• D)2.14 L
• E)5.55 L

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