Question Detail
Question
In the reaction (glucose combustion), if 856 g of glucose is consumed by a person over a certain period, what is the mass of CO₂ produced?
Correct Answer
Option C is the correct answer.
Detailed Explanation
Glucose combustion: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O. Molar mass glucose = 180 g/mol. Moles glucose = 856/180 = 4.756 mol. Moles CO₂ = 6 × 4.756 = 28.54 mol. Mass CO₂ = 28.54 × 44 = 1255.8 g ≈ 1250 g.
Hint
Use the balanced equation: 1 mol glucose produces 6 mol CO₂.