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Problem: Nitrogen and hydrogen gas react to form ammonia according to the reaction:N2(g) + 3H2(g) → 2NH3(g)What is the limiting reactant?

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N2(g) + 3 H2(g) → 2 NH3(g)

A flask containing two N2 molecules, each depicted as two blue spheres combined, and eight H2 molecules, each depicted as two smaller white spheres combined.


In the container:   2 moles N2 and 8 moles H2

Calculate the amount of NH3 produced from each reactant and determine the limiting reactant:

moles NH3=2 mol N2×2 mol NH31 mol N2

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Problem Details
Nitrogen and hydrogen gas react to form ammonia according to the reaction:

N2(g) + 3H2(g) → 2NH3(g)

A flask containing two N2 molecules, each depicted as two blue spheres combined, and eight H2 molecules, each depicted as two smaller white spheres combined.

What is the limiting reactant?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Limiting Reagent concept. If you need more Limiting Reagent practice, you can also practice Limiting Reagent practice problems.