Caffeine has the molecular formula, C₈H₁₀ N₄ O₂. If it is burned in excess oxygen it will form carbon dioxide, water vapor, and nitrogen gas. Which gas will be most abundant by mass?

Question

Quizplus · Accepted Answer

When caffeine is burned, it produces CO₂, H₂O, and N₂. By mass, CO₂ will be the most abundant because carbon dioxide has a higher molar mass compared to water and nitrogen gas, and there are more carbon atoms in caffeine contributing to CO₂ formation.

Caffeine Has the Molecular Formula, C₈H₁₀ N₄ O₂