lewis vs. bronsted

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Aashka Popat 1A
Posts: 50
Joined: Sat Sep 07, 2019 12:16 am

lewis vs. bronsted

Postby Aashka Popat 1A » Sun Nov 24, 2019 3:30 pm

What is the distinction between a Lewis acid/base and a Bronsted acid/base? Why are they interchangeable?

Johnathan Smith 1D
Posts: 108
Joined: Wed Sep 11, 2019 12:16 am

Re: lewis vs. bronsted

Postby Johnathan Smith 1D » Sun Nov 24, 2019 3:32 pm

Bronsted acids donate electrons and Lewis acids accept electrons

505316964
Posts: 95
Joined: Thu Jul 11, 2019 12:17 am

Re: lewis vs. bronsted

Postby 505316964 » Sun Nov 24, 2019 3:37 pm

A Bronsted Acid is a proton donor, a Lewis Acid accepts an electron pair. These are interchangeable because they are saying the same thing. When a proton is donated, the molecule becomes more negative, which is like accepting an electron pair. Bronsted and Lewis acids are the same thing, just a different way of describing what they do.

Nick Lewis 4F
Posts: 111
Joined: Wed Sep 18, 2019 12:18 am

Re: lewis vs. bronsted

Postby Nick Lewis 4F » Sun Nov 24, 2019 4:52 pm

Is donating a proton really the same as accepting an electron pair? What is the distinction and when does it come into play or are they exactly the same thing just interchangeable terms?

Serena Siddiq 3D
Posts: 51
Joined: Fri Aug 30, 2019 12:17 am

Re: lewis vs. bronsted

Postby Serena Siddiq 3D » Sun Nov 24, 2019 5:05 pm

This is incorrect, Bronsted Acids donate PROTONS not electrons.
Johnathan Smith 1D wrote:Bronsted acids donate electrons and Lewis acids accept electrons

faithkim1L
Posts: 105
Joined: Fri Aug 09, 2019 12:17 am

Re: lewis vs. bronsted

Postby faithkim1L » Sun Nov 24, 2019 5:18 pm

A Bronsted acid is a proton donor while a Lewis acid accepts an electron pair.

Tahlia Mullins
Posts: 105
Joined: Thu Jul 25, 2019 12:15 am

Re: lewis vs. bronsted

Postby Tahlia Mullins » Sun Nov 24, 2019 5:58 pm

Bronsted acids donate protons whereas Lewis acids take in protons, or rather, accept them. Do not confuse protons with electrons here!

Johnathan Smith 1D
Posts: 108
Joined: Wed Sep 11, 2019 12:16 am

Re: lewis vs. bronsted

Postby Johnathan Smith 1D » Sun Dec 01, 2019 8:53 pm

Sorry that was my bad. I thought I had put down protons. Thanks for correcting it!

DesireBrown1J
Posts: 98
Joined: Wed Sep 18, 2019 12:18 am

Re: lewis vs. bronsted

Postby DesireBrown1J » Sun Dec 01, 2019 9:28 pm

Do we need to know about the Arrhenius acids and bases? I saw it in the textbook but I do not remember him mentioning it in class.

Cynthia Rodas 4H
Posts: 51
Joined: Wed Sep 18, 2019 12:21 am

Re: lewis vs. bronsted

Postby Cynthia Rodas 4H » Sun Dec 01, 2019 10:41 pm

Lewis acids are electron acceptors and Bronsted acids are proton donors. Lewis bases are electron donors and Bronsted bases are proton acceptors.

Juana Abana 1G
Posts: 100
Joined: Wed Sep 18, 2019 12:15 am

Re: lewis vs. bronsted

Postby Juana Abana 1G » Mon Dec 02, 2019 6:59 pm

505316964 wrote:A Bronsted Acid is a proton donor, a Lewis Acid accepts an electron pair. These are interchangeable because they are saying the same thing. When a proton is donated, the molecule becomes more negative, which is like accepting an electron pair. Bronsted and Lewis acids are the same thing, just a different way of describing what they do.


Thank you so much this helps a lot.


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