molecularity


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Felicia Fong 2G
Posts: 31
Joined: Sat Jul 22, 2017 3:00 am

molecularity

Postby Felicia Fong 2G » Sat Mar 03, 2018 12:09 pm

Do you determine the molecularity of a reaction by number of reactants? For example, if NO+NO yields N2O2 then it is bimolecular because there are two reactants?

Jakob von Morgenland 2C
Posts: 31
Joined: Sat Jul 22, 2017 3:00 am
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Re: molecularity

Postby Jakob von Morgenland 2C » Sat Mar 03, 2018 12:12 pm

You can determine the molecularity by looking at the number of molecules that participate/are used in the rate-determining step/rate law.

aaron tang 2K
Posts: 49
Joined: Thu Jul 27, 2017 3:01 am

Re: molecularity

Postby aaron tang 2K » Mon Mar 05, 2018 2:44 pm

Yes you do.
A -> P unimolecular
A+B -> bimolecular
A+A -> bimolecular

Kailey Brodeur 1J
Posts: 34
Joined: Thu Jul 27, 2017 3:00 am

Re: molecularity

Postby Kailey Brodeur 1J » Mon Mar 05, 2018 5:22 pm

You are correct that molecularity can be determined by the reactants, but we have to remember that this concept only relates to elementary reactions and doesn't apply to overall reactions.

Renee Delamater 2H
Posts: 31
Joined: Wed Nov 16, 2016 3:02 am

Re: molecularity

Postby Renee Delamater 2H » Tue Mar 06, 2018 11:50 pm

Even though there are only NO molecules in the problem, using 2 of the NOs makes it bimolecular.

KayleeMcCord1F
Posts: 31
Joined: Fri Sep 29, 2017 7:05 am

Re: molecularity

Postby KayleeMcCord1F » Sun Mar 11, 2018 3:42 pm

You can determine molecularity by the number of molecules of reactants.

Arshpreet Sandhu 1B
Posts: 32
Joined: Thu Jul 27, 2017 3:00 am

Re: molecularity

Postby Arshpreet Sandhu 1B » Sun Mar 11, 2018 7:43 pm

Yeah, you calculate molecularity by the number of reactants in a reaction.


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