What mass of CO₂ is produced by burning 4.1 g of C₂H₄ in excess O₂?

Question

Quizplus · Accepted Answer

The balanced chemical equation for the combustion of C₂H₄ is:C₂H₄ + 3O₂ → 2CO₂ + 2H₂OFrom the stoichiometry of the balanced equation, we can see that 1 mole of C₂H₄ reacts with 3 moles of O₂ to produce 2 moles of CO₂.The molar mass of C₂H₄ is 28.05 g/mol, and the molar mass of CO₂ is 44.01 g/mol.Therefore, 4.1 g of C₂H₄ is equal to 4.1 g / 28.05 g/mol = 0.146 mol of C₂H₄.According to the stoichiometry of the balanced equation, 0.146 mol of C₂H₄ will react with 0.146 mol * 3 = 0.438 mol of O₂ to produce 0.146 mol * 2 = 0.292 mol of CO₂.Therefore, the mass of CO₂ produced is 0.292 mol * 44.01 g/mol = 12.85 g.The closest answer choice to 12.85 g is 13 g, so the correct answer is A.

What Mass of CO2 Is Produced by Burning 4

What Mass of CO₂ Is Produced by Burning 4