For the following reaction, which would be the limiting reagent? 2H2 +O2 --> 2H2O
Question
For the following reaction, which would be the limiting reagent?
2H2 + O2 --> 2H2O
Solution
To determine the limiting reagent in the reaction, you need to know the amounts of each reactant that are available. The limiting reagent is the reactant that is completely consumed first in a chemical reaction.
In the reaction 2H2 + O2 --> 2H2O,
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If you have equal amounts of H2 and O2, then H2 would be the limiting reagent because it takes two molecules of H2 to react with one molecule of O2.
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If you have more H2 than O2, then O2 would be the limiting reagent because there isn't enough O2 to react with all the H2.
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If you have more O2 than H2, then H2 would be the limiting reagent because there isn't enough H2 to react with all the O2.
So, without knowing the amounts of H2 and O2 available, it's impossible to definitively say which is the limiting reagent.
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