Iron (III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3
1 answer:
The answer is B.
First write a balanced equation, which is
4Fe + 3O2 => 2Fe2O3.
Then divide the grams of Fe by the molar mass of Fe (16.7/55.85).
You now know the number of moles of Fe, so perform dimensional analysis.
(.299*2*159.70)/(4*1) = 23.9 g
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