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UHS MDCAT 2025 Chemistry uhs mdcat chemistry 2025 #Mole Concept #Stoichiometry

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For the balanced equation 2H₂ + O₂ → 2H₂O, what volume of H₂ at STP is required to produce 1 mol of H₂O? (UHS MDCAT 2025)

Verified Answer & Explanation⌄

Correct Answer: B) 22.4 dm³

Concept Explanation

The balanced equation shows a 1:1 mole ratio between H₂ and H₂O. At STP, 1 mol H₂ occupies 22.4 dm³.

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