Bronsted Versus Lewis

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Amy Lefley 1J
Posts: 60
Joined: Fri Sep 28, 2018 12:15 am

Bronsted Versus Lewis

Postby Amy Lefley 1J » Wed Dec 05, 2018 8:32 pm

I remember Professor Lavelle mentioning that either Bronsted or Lewis is a more general classification meaning that all acids and bases are one thing but not necessarily the other. Which term is more general, Bronsted or Lewis?

Zubair Ahmed 1L
Posts: 81
Joined: Fri Sep 28, 2018 12:16 am

Re: Bronsted Versus Lewis

Postby Zubair Ahmed 1L » Wed Dec 05, 2018 8:39 pm

I believe it is that all Bronsted acids and bases are Lewis acids and bases, but not all Lewis acids and bases are Bronsted acids and bases.

Marcela Udave 1F
Posts: 66
Joined: Fri Sep 28, 2018 12:16 am

Re: Bronsted Versus Lewis

Postby Marcela Udave 1F » Wed Dec 05, 2018 9:04 pm

One of the UA told me they were the same thing.

Max Hayama 4K
Posts: 63
Joined: Fri Sep 28, 2018 12:16 am

Re: Bronsted Versus Lewis

Postby Max Hayama 4K » Wed Dec 05, 2018 9:17 pm

I believe Bronsted is more general, since it refers to being an electron pair donor or acceptor, while Lewis regards being a proton acceptor or donor, which some acids and bases may not have.

Eva Zhao 3B
Posts: 51
Joined: Sun Sep 29, 2019 12:16 am

Re: Bronsted Versus Lewis

Postby Eva Zhao 3B » Tue Dec 03, 2019 10:38 pm

The Lewis definition is more consistent in classifying most acids-bases, since a molecule might not have hydrogen to donate for the definition of a Bronsted acid. However, my TA said, at least for now, the Bronsted definition will be primarily used (i.e. for writing chemical equations in acid-base reactions), unless told otherwise.


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