Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid fuel rocket motors. the reaction is fe2o3(s) + 2al(s) → 2fe(l) + al2o3(s) click here to see the reaction. what is the maximum mass of aluminum oxide that could be produced along with 18.65 g iron?

16.98 g

Explanation:

The balacend equation is

Fe2O3(s) + 2Al(s) → 2Fe(l) + Al2O3(s)

So, when 2 moles of iron (Fe) are produced, 1 mol of aluminum oxide is produced. The mass molar of the elements are:

Fe = 56 g/mol; O = 16 g/mol; Al = 27 g/mol

Then, the mass molar of Al2O3 is:

2x27 + 3x16 = 102 g/mol

The stoichiometry relation will be:

2 mol of Fe 1 mol of Al2O3

2x56 g of Fe 102 g of Al2O3

18.65 g of Fe x g of Al2O3

By a direct simple three rule:

112x = 1902.3

x = 16.98 g

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