[Solution from source] Molar mass of C₄H₁₀ = 58 g mol⁻¹, so 116 g = 2 mol. 2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O, so 8 mol × 44 g mol⁻¹ = 352 g. Answer (2).
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