Determine if molecule is in most stable form

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Jordan_Wesson_2J
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

Determine if molecule is in most stable form

Postby Jordan_Wesson_2J » Thu Feb 14, 2019 10:38 pm

Is there some way to determine if a molecule is in its most stable form with out it being given?

Nicolette_Canlian_2L
Posts: 77
Joined: Fri Sep 28, 2018 12:25 am
Been upvoted: 1 time

Re: Determine if molecule is in most stable form

Postby Nicolette_Canlian_2L » Thu Feb 14, 2019 10:43 pm

certain diatomic molecules, like CO2 and H2O are in the most stable forms.

Matthew Choi 2H
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

Re: Determine if molecule is in most stable form

Postby Matthew Choi 2H » Tue Feb 19, 2019 11:54 am

I think you should just draw the Lewis structure of the molecule and check to see if the formal charges of the atoms are all 0 or close to 0.

Danielle_Gallandt3I
Posts: 70
Joined: Fri Sep 28, 2018 12:24 am

Re: Determine if molecule is in most stable form

Postby Danielle_Gallandt3I » Tue Feb 19, 2019 11:57 am

I think for many of them you just have to memorize, but some are pretty apparent and easy to remember, like an O2 molecule and many other diatomic molecules

Alysa Rallistan 2G
Posts: 32
Joined: Thu Jan 17, 2019 12:16 am

Re: Determine if molecule is in most stable form

Postby Alysa Rallistan 2G » Mon Mar 11, 2019 11:58 pm

If it isn't a diatomic molecule, you would probably have to find this out by calculating the dG for the reaction if it is negative the molecule is more stable than its elements and if the value is positive then vice versa

CHEM 14B Lover
Posts: 33
Joined: Fri Sep 28, 2018 12:19 am

Re: Determine if molecule is in most stable form

Postby CHEM 14B Lover » Thu Mar 14, 2019 2:28 pm

I think you can also consider whether or not the molecule is in its most oxidised state. If it is then it's in a lowest energy configuration (I think).


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