Question

Based on the equation below , how many moles of carbon monoxide (CO) are needed to react completely with 1.75 moles of iron (lll) oxide (Fe2O3)
Fe2O3(s) + 3CO(g) --->2Fe(s) + 3CO2(g)

Answer 1

From the equation:
1 mole Fe₂O₃ needs 3 moles of CO
1.75 moles require:
1.75 x 3
= 5.25 moles of CO