Grams are same when looking for limiting reactant?

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In summary, a limiting reactant is a substance that is completely used up in a chemical reaction, limiting the amount of product that can be formed. It is important to identify the limiting reactant in order to accurately calculate the theoretical yield of a reaction and determine its efficiency. This can be done by using the mole ratio between reactants and products, with the reactant that produces the least amount of product being the limiting reactant. Grams can also be used to find the limiting reactant by converting the mass of each reactant to moles and comparing them. If the wrong reactant is assumed to be the limiting reactant, it can lead to incorrect theoretical yield calculations and inaccurate conclusions about the reaction.
  • #1
legendarium
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Hey, the question was to find the limiting reactant for Lead II Nitrate and Potassium Chromate.

I did the work and ended up with 0.084 g for both calculations. (sorry I am not sure how the proper jargon is in chem)

So the grams are the same...does that mean that there is not limiting reactant?
Also, the theoretical yield would be 0.084g then, right?
 
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  • #2
Unfortunately no one answered my question.

The answer is yes, there is no limiting reactant.
 

What is a limiting reactant?

A limiting reactant is a substance that is completely used up in a chemical reaction, thereby limiting the amount of product that can be formed.

Why is it important to identify the limiting reactant?

Identifying the limiting reactant is important because it allows us to accurately calculate the theoretical yield of a reaction. This information is crucial in determining the efficiency of a reaction and helps in planning for the amount of reactants needed in future experiments.

How do you determine the limiting reactant?

To determine the limiting reactant, you can use the mole ratio between the reactants and products. The reactant that produces the least amount of product is the limiting reactant.

Can grams be used to find the limiting reactant?

Yes, grams can be used to find the limiting reactant. The mass of each reactant can be converted to moles using their respective molar masses, and then compared to determine the limiting reactant.

What happens if the wrong reactant is assumed to be the limiting reactant?

If the wrong reactant is assumed to be the limiting reactant, the calculated theoretical yield will be incorrect. This can lead to inefficient use of resources and inaccurate conclusions about the reaction.

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