Final answer:
To determine the mass of CO required to react with 25.13 g of Fe₂O₃, use the balanced chemical equation and the molar ratio between Fe₂O₃ and CO. Calculate the moles of CO required and convert them to grams using the molar mass of CO.
Step-by-step explanation:
In order to determine the mass of CO required to react with 25.13 g of Fe₂O₃, we need to use the balanced chemical equation Fe₂O₃ + 3CO →2Fe + 3CO₂. From the equation, we can see that the molar ratio between Fe₂O₃ and CO is 1:3. Therefore, we can calculate the moles of CO required by dividing the moles of Fe₂O₃ by the molar ratio. Then, we can convert the moles of CO to grams using the molar mass of CO. The mass of CO required to react with 25.13 g of Fe₂O₃ is approximately 37.7 g.