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KMU MDCAT 2024 Chemistry #Percentage Yield #Stoichiometry

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Heating 24.8g of copper carbonate (CuCO₃) in a crucible produced only 13.9g of copper oxide (CuO). What is the percentage yield of copper oxide? (KMU MDCAT 2024)

Verified Answer & Explanation⌄

Correct Answer: C) 86.87%

Concept Explanation

24.8 g CuCO₃ gives about 15.99 g CuO theoretically. Percentage yield = 13.9/15.99 × 100 ≈ 86.9%.

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