Identifying a catalyst in a reaction

Arrhenius Equation:

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Hailey Johnson
Posts: 31
Joined: Wed Nov 16, 2016 3:04 am

Identifying a catalyst in a reaction

Postby Hailey Johnson » Fri Mar 16, 2018 12:35 am

How do we differentiate between an intermediate and a catalyst in a reaction mechanism if they both cancel out and are not included in the overall chemical equation?

Michelle Steinberg2J
Posts: 73
Joined: Fri Sep 29, 2017 7:04 am

Re: Identifying a catalyst in a reaction

Postby Michelle Steinberg2J » Fri Mar 16, 2018 1:31 am

An intermediate is produced and then used. A catalyst, however, is used and then later produced.
Look at which sides of the equation they appear on :)

Veritas Kim 2L
Posts: 30
Joined: Fri Sep 29, 2017 7:05 am

Re: Identifying a catalyst in a reaction

Postby Veritas Kim 2L » Fri Mar 16, 2018 1:19 pm

Yes, intermediates will always appear as the products first and then used up as a reactant in the following step. However, catalysts will always appear on the reactant side first. Catalysts are not consumed!

Rishi Khettry 1L
Posts: 29
Joined: Fri Sep 29, 2017 7:05 am

Re: Identifying a catalyst in a reaction

Postby Rishi Khettry 1L » Sat Mar 17, 2018 2:03 am

Intermediates will always be consumed while catalysts are not consumed.

GabrielGarciaDiscussion1i
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Joined: Fri Sep 29, 2017 7:04 am
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Re: Identifying a catalyst in a reaction

Postby GabrielGarciaDiscussion1i » Sat Mar 17, 2018 3:04 am

Intermediates appear as products and then are consumed in later steps while catalysts are present in the beginning of the mechanism, used in one of the steps, then produced so as not to be consumed in the overall rxn.


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