## electronegativity

Acidity $K_{a}$
Basicity $K_{b}$
The Conjugate Seesaw $K_{a}\times K_{b}=K_{w}$

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Clara Cho 2K
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Joined: Wed Sep 18, 2019 12:18 am

### electronegativity

how does the difference in electronegativity contribute to the strength of an acid?

Lindsey Chheng 1E
Posts: 110
Joined: Fri Aug 30, 2019 12:16 am

### Re: electronegativity

Clara Cho wrote:how does the difference in electronegativity contribute to the strength of an acid?

When comparing the strength of these acids (HF, HCl, HBr, and HI), what difference in electronegativity is crucial in telling us how strong the bond is between Hydrogen and the respective halogen. Since F has the highest electronegativity, the H - F bond is stronger than the bonds in the rest of the compounds. The stronger the bond, the less the acid will want to dissociate into its respective ions. Therefore, HF is a weak acid and HI is the strongest acid out of HCl, HBr, and HI.

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