Iron is produced from its ore by the reactions: How many moles of O₂(g)are needed to produce 4.6 moles of Fe(s)? A)2.3 mole O₂ B)3.5 mole O₂ C)4.6 mole O₂ D)6.9 mole O₂ E)13.8 mole O₂

Question

Quizplus · Accepted Answer

According to the balanced chemical equation, 3 moles of O₂ are required to produce 1 mole of Fe. Therefore, the number of moles of O₂ needed to produce 4.6 moles of Fe is: 4.6 moles Fe x (3 moles O₂/1 mole Fe) = 13.8 moles O₂ Therefore, the best choice is B, which is the closest option to the calculated value.

Iron Is Produced from Its Ore by the Reactions