Answer:
Option 3.
364.1 g of COâ‚‚ are produced by the reaction
Explanation:
Let's verify the balance equation for this reaction:
Fe₃O₄  +  4 CO  →  3 Fe  +  4CO₂
Let's convert the mass of Fe₃O₄ to moles (mass / molar mass)
478.9 g / 231.55 g/mol  = 2.07 moles
Ratio is 1:4, so let's make a rule of three to determine the moles of COâ‚‚ produced and then its mass.
1 mol of Fe₃O₄ is needed to produce 4 moles of CO₂
Then, 2.07 moles of Fe₃O₄ will produce (2.07  .4) /1 = 8.27 moles of CO₂.
Molar mass . moles = mass
44 g/mol . 8.27 mol = 364 g of COâ‚‚