Electron withdrawing

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Amy Luu 2G
Posts: 69
Joined: Wed Sep 18, 2019 12:19 am

Electron withdrawing

Postby Amy Luu 2G » Fri Dec 06, 2019 12:45 am

Why does electron withdrawing increase the acidity?

Janet Nguy 2C
Posts: 74
Joined: Sat Aug 24, 2019 12:17 am

Re: Electron withdrawing

Postby Janet Nguy 2C » Fri Dec 06, 2019 2:05 am

When you have multiple highly electronegative atoms bonded to a central atom in the resulting anion of an acid-base reaction, the electronegative atoms will pull electron density towards it, thereby diffusing the negative charge across the entire molecule and thus making it more stable. This "e- withdrawing ability" correlates to a stronger acid because the anion is more stable on its own and will act as a very, very weak base (unlikely to accept another proton).

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