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Strengths of Acids

Posted: Sun Nov 22, 2015 7:03 pm
by Katrina Jang 2H
What is the relationship between structure or hybridization and acidity?

Re: Strengths of Acids

Posted: Sun Nov 22, 2015 7:25 pm
by Destiny Dare 1D
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.

Re: Strengths of Acids

Posted: Mon Nov 23, 2015 2:45 pm
by chemgal4L
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?

Re: Strengths of Acids

Posted: Sun Nov 29, 2015 5:49 pm
by Destiny Dare 1D
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.