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23 Nov 2019

Iron reacts with oxygen to produce iron (III) oxide.
4Fe(s) + 3O2(g) -> 2Fe2O3(s)

If 3.2 molecules of Fe react with excess O2, how many moles ofFe2O3 can be formed?

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Related questions

4Fe + 3O2 = 2Fe2O3

How many moles of oxygen molecules would be needed to react with111.2 grams of iron? How many grams of rust would result from thisreaction?

Dry chemical hand warmers utilize the oxidation of iron to form iron oxide according to the following reaction:

4Fe(s)+3O2(g)→2Fe2O3(s)

Standard thermodynamic quantities for selected substances at 25 ∘C

Reactant or product ΔH∘f(kJ/mol)
Fe(s) 0.0
O2(g) 0.0
Fe2O3(s) −824.2

Part A

Calculate ΔH∘rxn for this reaction.

Express the energy in kilojoules to one decimal place.
ΔH∘rxn = kJ

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