Strengths of Acids

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Katrina Jang 2H
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Strengths of Acids

Postby Katrina Jang 2H » Sun Nov 22, 2015 7:03 pm

What is the relationship between structure or hybridization and acidity?

Destiny Dare 1D
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Strengths of Acids

Postby Destiny Dare 1D » Sun Nov 22, 2015 7:25 pm

The greater the s-character of a hybrid orbital, the greater the acidity of the acid. So an acid with hybridization will be stronger than an acid with hybridization, and an acid with hybridization will be stronger than an acid with hybridization.

chemgal4L
Posts: 19
Joined: Fri Sep 25, 2015 3:00 am

Re: Strengths of Acids

Postby chemgal4L » Mon Nov 23, 2015 2:45 pm

Is there a conceptual reason behind this? I understand the rule that with a greater s orbital, the higher acidity of the acid, but why is this exactly?

Destiny Dare 1D
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

Re: Strengths of Acids

Postby Destiny Dare 1D » Sun Nov 29, 2015 5:49 pm

S-orbitals are closer to the nucleus than p-orbitals. So the more s-character a hybrid orbital has, the closer the electrons are to the atom. Such atoms are less willing to share their electron density (have greater electronegativity), and thus have greater acidic character.


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