Practice question
Question
What volume of CO₂ at STP is produced when 10 g of C₄H₁₀ is burned completely? (Molar mass: C₄H₁₀ = 58 g/mol)
Explanation
Reaction: 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O. Moles of C₄H₁₀ ≈ 0.1724 mol. 2 mol produce 8 mol CO₂; 0.1724 mol produce ≈ 0.6896 mol. Volume = 0.6896 × 22.4 ≈ 15.45 L.
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