Question

Blast furnaces extract pure iron from the iron(III) oxide in iron ore in a two step sequence.In the first step, carbon and oxygen react to form carbon monoxide: 2C (s) + O2 (g) → 2CO (g)In the second step, iron(III) oxide and carbon monoxide react to form iron and carbon dioxide: Fe2O3 (s) + 3CO (g) → 2Fe (s) + 3CO2 (g)Write the net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide. Be sure your equation is balanced.

Answer 1

Answer:

The net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide:

$2Fe_2O_3 (s) +6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)$

Explanation:

Step 1: Carbon and oxygen react to form carbon monoxide:

$2C (s) + O_2 (g)\rightarrow 2CO (g)$..[1]

Step 2: Iron(III) oxide and carbon monoxide react to form iron and carbon dioxide:

$Fe_2O_3 (s) + 3CO (g)\rightarrow 2Fe (s) + 3CO_2 (g)$..[2]

The net chemical equation for the production of iron from carbon, oxygen and iron(III) oxide can be obtained by :

3 × [1] + 2 × [2]

$2Fe_2O_3 (s) + 6CO (g)+6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)+6CO(g)$

CO gas will gas cancel out form both sides ans we will get the net chemical equation:

$2Fe_2O_3 (s) +6C (s) + 3O_2 (g)\rightarrow 4Fe (s) + 6CO_2 (g)$

According to reaction, 2 moles of ferric oxide reacts with 6 moles of carbon and 3 moles of oxygen gas to give 4 moles of iron and 6 moles pf carbon dioxide gas.