Bronsted Acids vs Lewis acids

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Selena Yu 1H
Posts: 108
Joined: Fri Aug 09, 2019 12:16 am

Bronsted Acids vs Lewis acids

Postby Selena Yu 1H » Sat Nov 23, 2019 9:26 pm

What is the difference between bronsted acids and Lewis acids? Why do we need to classify acids differently?

gabbymaraziti
Posts: 111
Joined: Wed Sep 18, 2019 12:19 am

Re: Bronsted Acids vs Lewis acids

Postby gabbymaraziti » Sat Nov 23, 2019 9:46 pm

I think they're two different acid-base theories; the difference is that a Lewis theory states that an acid is an electron acceptor and a base is an electron donor, and the Bronsted theory states that an acid is a proton donor and a base is a proton acceptor.

Rory Simpson 2F
Posts: 106
Joined: Fri Aug 09, 2019 12:17 am

Re: Bronsted Acids vs Lewis acids

Postby Rory Simpson 2F » Sat Nov 23, 2019 9:46 pm

I think that a Bronsted definition of acids means that acids require a hydrogen (because a proton H+ needs to be released), whereas a Lewis acid means that some compounds without hydrogen can still be acids in certain reactions.

Emily Chirila 2E
Posts: 112
Joined: Sat Jul 20, 2019 12:16 am

Re: Bronsted Acids vs Lewis acids

Postby Emily Chirila 2E » Sat Nov 23, 2019 9:48 pm

A bronsted acid is a proton donor. A Lewis acid is the species that accepts the e- pair. So, a Lewis acid is a broad term for anything that accepts a pair of electrons, whereas a bronsted acid is specifically the proton donor.

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: Bronsted Acids vs Lewis acids

Postby Sally Qiu 2E » Sat Nov 23, 2019 9:53 pm

a bronsted acid describes acids as proton donors, as in they lose an H+. the lewis definition of an acid is that they are electron acceptors, so they gain electrons.


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