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2 years ago

If you are given 0.25 mol of Fe and 0.5 mol of O2, what is the limiting reactant?

Chemistry

2 answers:

erik [133]2 years ago

8 0

The limiting reactant from the calculations is Fe.

<h3>What is the limiting reactant?</h3>

The limiting reactant is the reactant that is present in the least amount in solution. Now we have the equation as; 4Fe+ 3O2 → 2Fe2O3

If 4 moles of Fe reacts with 3 moles of O2

0.25 mol of Fe reacts with 0.25 mol * 3 moles/4 moles

= 0.1875 moles of O2

It then follows that the limiting reactant is Fe.

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jeka942 years ago

6 0

The limiting reactant will be Fe.

<h3>What are limiting reactants?</h3>

They are reactants that are available in limited quantities, as compared to other reactants, during the course of reactions.

From the equation of the reaction: $4Fe + 3O_2 --- > 2Fe_2O_3$

The mole ratio of Fe to O2 is 4:3.

Thus, for 0.25 mol Fe, 0.25 x 3/4 = 0.1875 mol of O2 is required.

With 0.5 mol of O2 available, it means oxygen is in excess while Fe is limited in availability.

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