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4. 1 Fe2O3 (s) + 3 C(s) → 3 CO (g) + 2 Fe (s) How many moles of Carbon are required to completely react with 5 moles of Iron (III) Oxide?​

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Answer:

15 moles of carbon required

What is stoichiometry?

In chemical equations, unless stated otherwise, the reactants and products will theoretically always remain in stoichiometric ratios.

The stoichiometry of a reaction is the relationship between the relative quantities of products and reactants, typically a ratio of whole integers.

Consider the following chemical reaction: aA + bB ⇒ cC + dD.

The stoichiometry of reactants to products in this reaction is the ratio of the coefficients of each species: a : b : c : d.

Now let's apply this knowledge to the question to be attempted:

first, we can start by writing out a balanced chemical equation, with states.

Fe₂O₃(s) + 3C(s) ⇒ 3CO(g) + 2Fe(g)

Hence, the stoichiometry of this reaction is 1 : 3 : 3 : 2. This means that for every 1 mole of iron(III) oxide, we require 3 moles of carbon, 3 moles of carbon monoxide, and 2 moles of iron.

If we have 1×5 moles of iron(III) oxide, then we require 3×5 moles of carbon. Therefore, we need 15 moles of carbon

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