What mass of carbon dioxide (co2) will be produced if 2.90 moles of iron (fe) is produced?

191.4 g.

Explanation:

Fe₂O₃(s) + 3CO(g) → 2Fe(s) + 3CO₂(g),

It is clear that 1.0 mole of Fe₂O₃ react with 3.0 mole of CO to produce 2.0 moles of Fe and 3.0 moles of CO₂.

Using cross multiplication:

2.0 mol of Fe produced with → 3.0 mol of CO₂, from stichiometry.

2.9 mol of Fe produced with → ??? mol of CO₂.

∴ The no. of moles of CO₂ produced = (3.0 mol)(2.9 mol)/(2.0 mol) = 4.35 mol.

∴ The mass of CO₂ produced = no. of moles x molar mass = (4.35 mol)(44.0 g/mol) = 191.4 g.

a polar bond is formed when electrons are shared unevenly between atoms

fe 55.85 g/mol and h2o 18.02 g/mol.