Question

How many moles of carbon monoxide are needed to react with 8.25 moles of Fe3O4?

Fe3O4(s) + 4 CO(9) --> 3 Fe(s) + 4 CO2(g)

Answer 1

To determine the mass of CO required to react with 25.13 g of Fe₂O₃, we need to use stoichiometry to calculate the moles of reactants. Then, we convert the moles of CO to grams using its molar mass.

Step-by-step explanation:

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. First, we convert the mass of Fe₂O₃ to moles using its molar mass. Then, we use the molar ratio to calculate the moles of CO needed. Finally, we convert the moles of CO to grams using its molar mass.

Calculate moles of Fe₂O₃: moles = mass / molar mass

Using the molar ratio, calculate moles of CO needed: moles of CO = moles of Fe₂O₃ x molar ratio

Convert moles of CO to grams: mass = moles x molar mass