Why Lewis Acid?

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Adam Kramer 1A
Posts: 103
Joined: Sat Aug 24, 2019 12:15 am

Why Lewis Acid?

Postby Adam Kramer 1A » Sun Nov 10, 2019 11:22 am

Why is an atom that donates a pair of electrons known as a Lewis base, and vice versa with the Lewis acid, and why does it matter?

Rebecca Epner 4A
Posts: 53
Joined: Sat Aug 17, 2019 12:18 am

Re: Why Lewis Acid?

Postby Rebecca Epner 4A » Sun Nov 10, 2019 11:28 am

In general, bases donate electrons while acids accept electrons

Julianna Laurentano 4G
Posts: 52
Joined: Wed Sep 18, 2019 12:21 am

Re: Why Lewis Acid?

Postby Julianna Laurentano 4G » Sun Nov 10, 2019 1:38 pm

According to Lewis, acids accept pairs of electrons while bases donate them. Using H2O as an example, Lewis said that the H+ is the atom that actively accepts electrons from OH-, forming H2O.

Hussain Chharawalla 1G
Posts: 100
Joined: Sat Jul 20, 2019 12:15 am

Re: Why Lewis Acid?

Postby Hussain Chharawalla 1G » Sun Nov 10, 2019 10:11 pm

If it helps, I like to think of it as a modified version of the Bronsted Lowry acid and base idea. In the bronsted definition, an acid donates a hydrogen proton and a base accepts a hydrogen proton. Without a proton, you are left with an electron. The Lewis definition allows you to broaden and apply that definition with molecules that don't contain hydrogen.

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