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Topic: Limiting Reagent  (Read 1222 times)

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Offline eastsherbert8948

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Limiting Reagent
« on: January 21, 2024, 07:45:21 PM »
In a reaction represented by:
3Fe + 4H2O --> Fe3O4 + 4H2
How many moles of Fe react if 1kg of H2 is formed?

(I calculated 125 moles of iron react to produce 1 kg of hydrogen gas via 500 divided by 4 (500 being the moles of H2) Thank you
« Last Edit: January 21, 2024, 10:46:13 PM by eastsherbert8948 »
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Offline Hunter2

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Re: Limiting Reagent
« Reply #1 on: January 22, 2024, 01:54:13 AM »
No, start with how many mol  is 1 kg H2
Then look  how many moles correspond to the iron.
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Offline Borek

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Re: Limiting Reagent
« Reply #2 on: January 22, 2024, 03:02:38 AM »
Quote from: Hunter2 on January 22, 2024, 01:54:13 AM
No, start with how many mol  is 1 kg H2

OP already did that.
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Offline Borek

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Re: Limiting Reagent
« Reply #3 on: January 22, 2024, 03:03:36 AM »
Quote from: eastsherbert8948 on January 21, 2024, 07:45:21 PM
(I calculated 125 moles of iron react to produce 1 kg of hydrogen gas via 500 divided by 4 (500 being the moles of H2) Thank you

You started right, but you ignored stoichiometric coefficient for iron.
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