Iron react with oxygen to form Iron (III) Oxide. How many moles of iron (III) Oxide is in 138.5g?
1 answer:
Answer:
0.87mole
Explanation:
The reaction equation is given as;
4Fe + 3O₂ → 2Fe₂O₃
Number of moles of Fe₂O₃ in 138.5g
To solve this problem;
Number of moles =
Molar mass of Fe₂O₃ = 2(56) + 3(16) = 160g/mol
Now;
Number of moles =
= 0.87mole
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