Intermediates


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906217287
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Joined: Fri Sep 29, 2023 10:56 am

Intermediates

Postby 906217287 » Fri Mar 15, 2024 11:46 pm

Will there always be an intermediate to base the rate equation off of?

CeeJay Chhum 1L
Posts: 42
Joined: Fri Sep 29, 2023 9:30 am

Re: Intermediates

Postby CeeJay Chhum 1L » Fri Mar 15, 2024 11:49 pm

No. One step reactions is a good example of when there is no intermediate. Whereas in a two step, there is typically an intermediate.

Denise Mora 1C
Posts: 41
Joined: Tue Nov 14, 2023 8:59 am

Re: Intermediates

Postby Denise Mora 1C » Sun Mar 17, 2024 9:23 pm

Hi, no there won't always be intermediates involved in reactions. Intermediates are important in helping to carry out a reaction but are not always necessary. Also, even if there is an intermediate involved, it will not be present in the rate for the overall reaction.

106062642
Posts: 42
Joined: Wed Nov 15, 2023 9:21 am

Re: Intermediates

Postby 106062642 » Sun Mar 17, 2024 9:26 pm

Not always. The specific phases that make up the whole process determine whether or not intermediates are present in a reaction mechanism. Chemical reactions frequently go through a number of basic phases, each of which involves the production and absorbance of molecules.

806205379
Posts: 41
Joined: Fri Sep 29, 2023 9:38 am

Re: Intermediates

Postby 806205379 » Sun Mar 17, 2024 10:16 pm

No, there will not always be an intermediate to base the rate equation off of. The presence of intermediates in a reaction mechanism depends on the specific steps involved in the reaction pathway. Some reactions proceed through elementary steps that involve the direct conversion of reactants to products without the formation of intermediates. In such cases, the rate equation is based on the concentrations of the reactants themselves, rather than intermediates. However, in many cases, reaction mechanisms do involve the formation of intermediates. These are transient species that are formed in one step of the reaction mechanism and consumed in a subsequent step. In these cases, the rate equation is often based on the concentration of the intermediate because its formation and consumption determine the overall rate of the reaction.Whether or not an intermediate is present and whether it plays a role in the rate equation depend on the specific reaction mechanism and the steps involved in the reaction pathway. It is not a universal requirement for all reactions.


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