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Determine if molecule is in most stable form

Posted: Thu Feb 14, 2019 10:38 pm
by Jordan_Wesson_2J
Is there some way to determine if a molecule is in its most stable form with out it being given?

Re: Determine if molecule is in most stable form

Posted: Thu Feb 14, 2019 10:43 pm
by Nicolette_Canlian_2L
certain diatomic molecules, like CO2 and H2O are in the most stable forms.

Re: Determine if molecule is in most stable form

Posted: Tue Feb 19, 2019 11:54 am
by Matthew Choi 2H
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.

Re: Determine if molecule is in most stable form

Posted: Tue Feb 19, 2019 11:57 am
by Danielle_Gallandt3I
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

Re: Determine if molecule is in most stable form

Posted: Mon Mar 11, 2019 11:58 pm
by Alysa Rallistan 2G
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

Re: Determine if molecule is in most stable form

Posted: Thu Mar 14, 2019 2:28 pm
by CHEM 14B Lover
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).