Answer:
Step-by-step explanation:
The balanced chemical equation for the reaction between carbon monoxide (CO) and iron(III) oxide (Fe2O3) is:3CO + Fe2O3 -> 2Fe + 3CO2From this equation, we can see that 3 moles of carbon monoxide react with 1 mole of iron(III) oxide to form 2 moles of iron.Therefore, if 0.9 moles of carbon monoxide react, we can calculate the amount of iron formed using the following steps:Use stoichiometry to determine the amount of iron(III) oxide needed for the reaction. Since there is excess iron(III) oxide, the amount of iron(III) oxide needed is equal to the amount of carbon monoxide used in the reaction. So, the amount of iron(III) oxide used is also 0.9 moles.Use stoichiometry again to determine the amount of iron formed. Since 3 moles of carbon monoxide react with 2 moles of iron, the ratio of moles of iron to moles of carbon monoxide is 2/3. Therefore:0.9 mol CO x (2 mol Fe / 3 mol CO) = 0.6 mol FeSo, 0.6 moles of iron is formed when 0.9 moles of carbon monoxide reacts with excess iron(III) oxide.