Lewis Acids and Bases and Bronsted?

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Shundeen Martinez 1D
Posts: 31
Joined: Fri Sep 28, 2018 12:18 am

Lewis Acids and Bases and Bronsted?

Postby Shundeen Martinez 1D » Fri Dec 07, 2018 1:43 pm

What is the difference between lewis acids and bases and bronsted acids and bases? And how can you determine both?

Gabriela Aguilar 4H
Posts: 30
Joined: Fri Sep 28, 2018 12:29 am

Re: Lewis Acids and Bases and Bronsted?

Postby Gabriela Aguilar 4H » Fri Dec 07, 2018 1:57 pm

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

Rithana Srikanth 3L
Posts: 30
Joined: Fri Sep 28, 2018 12:26 am

Re: Lewis Acids and Bases and Bronsted?

Postby Rithana Srikanth 3L » Fri Dec 07, 2018 1:58 pm

Lewis acids are electron acceptors, Lewis bases are electron donors.
Bronsted acids are proton donors, Bronsted bases are proton acceptors.
For Lewis acids/bases, you can usually tell by looking at the Lewis structure. For Bronsted acids/bases, you can tell by whether they form ions by accepting or losing protons.

Aurbal Popal
Posts: 63
Joined: Fri Sep 28, 2018 12:27 am

Re: Lewis Acids and Bases and Bronsted?

Postby Aurbal Popal » Fri Dec 07, 2018 2:04 pm

People have already replied but I just wanted to add that Lewis acids and bases basically more general, while Bronstead acids and bases are a subclass of Lewis acids and bases and have a more specific definition

Ester Garcia 1F
Posts: 29
Joined: Fri Sep 28, 2018 12:17 am

Re: Lewis Acids and Bases and Bronsted?

Postby Ester Garcia 1F » Fri Dec 07, 2018 2:05 pm

A Lewis acid can accept a pair of lone electrons and a lewis base can donate a pair of lone electrons. A Bronsted acid is a proton donor and a Bronsted base is a proton acceptor. Most Bronsted acids contain an H+ ion that breaks off while a lewis acid may have unfilled octects or have room to accept more electrons (extra d orbital).

305127455
Posts: 30
Joined: Fri Sep 28, 2018 12:16 am

Re: Lewis Acids and Bases and Bronsted?

Postby 305127455 » Fri Dec 07, 2018 9:20 pm

Lewis acid has space for insertion of lone-pair electrons, like AlCl3 in which the Al has 6 bonded electrons and, thus, space for 2 more electrons. Lewis base has lone-pair electrons on the central atom. Brønsted acid donates H+ while Brønsted base accept H+.


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