Limiting Reactant vs Theoretical Yield

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Kassandra Molina 2B
Posts: 43
Joined: Wed Nov 16, 2016 3:03 am

Limiting Reactant vs Theoretical Yield

Postby Kassandra Molina 2B » Mon Nov 13, 2017 10:18 pm

What is the difference between a limiting reactant and a theoretical yield? Or are they the same?

Kaylin Krahn 1I
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Re: Limiting Reactant vs Theoretical Yield

Postby Kaylin Krahn 1I » Mon Nov 13, 2017 11:42 pm

A limiting reactant is the reactant in an equation that determines how much product will be produced. This is found by determining how many moles of each reactant you have and comparing it to the ratio of reactants found when balancing the chemical equation.

Theoretical yield is the maximum potential amount of product that could be produced from a certain amount of reactant. This is usually compared to actual yield, which is always less than theoretical yield due to other small reactions or imperfections in experiments. Actual yield divided by theoretical yield equals percent yield.

Mikaila 3E
Posts: 21
Joined: Fri Sep 29, 2017 7:07 am

Re: Limiting Reactant vs Theoretical Yield

Postby Mikaila 3E » Sat Nov 18, 2017 8:55 am

You would have to find the limiting reactant in order to determine the theoretical yield. In other words, to find the theoretical yield, you would still go through the same steps as the finding the limiting reactant.

Gwen Peng 1L
Posts: 36
Joined: Sat Jul 22, 2017 3:01 am

Re: Limiting Reactant vs Theoretical Yield

Postby Gwen Peng 1L » Sun Nov 19, 2017 11:01 pm

A limiting reactant determines the amount of product created from a reactant. This means that a reaction will stop once the limiting reactant in the reaction is completely used up. Whereas, the theoretical yield is an estimation of the amount of product which is predicted using a stoichiometric calculation based on the number of moles.


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