Lewis Acids and Bases
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 94
- Joined: Fri Sep 24, 2021 5:37 am
-
- Posts: 100
- Joined: Fri Sep 24, 2021 6:00 am
Re: Lewis Acids and Bases
Hello! I am not sure if you're asking how to recognize it if you were given an example of a lewis structure, but I do know that a key difference to tell between the two is that a lewis acid is an acceptor of electrons and a lewis base is a donor of electrons.
-
- Posts: 100
- Joined: Fri Sep 24, 2021 7:28 am
Re: Lewis Acids and Bases
A lewis acid accepts electrons and a lewis base donates electrons. A lewis acid should have a positive charge and a lewis base should have a negative charge.
Re: Lewis Acids and Bases
A Lewis acid is a substance that accepts a pair of electrons to form a covalent bond. A Lewis base is a substance that donates a pair of electrons to form a covalent bond.
-
- Posts: 99
- Joined: Fri Sep 24, 2021 6:06 am
Re: Lewis Acids and Bases
You can tell if something is either a Lewis acid or a Lewis base by seeing if the atoms either accept or donate their electrons. A Lewis acid occurs when the atoms accept electrons and a Lewis base occurs when the atoms donate their electrons.
-
- Posts: 100
- Joined: Fri Sep 24, 2021 5:12 am
Re: Lewis Acids and Bases
Hi!
If the structure is giving away electrons, then it's a Lewis Base. If the structure is receiving electrons, then it's a Lewis Acid.
If the structure is giving away electrons, then it's a Lewis Base. If the structure is receiving electrons, then it's a Lewis Acid.
-
- Posts: 101
- Joined: Fri Sep 24, 2021 7:29 am
Re: Lewis Acids and Bases
A lewis acid accepts electrons while a lewis base donates electrons. Molecules with lone pairs tend to donate electrons and electron-deficient central atoms such as Be tend to accept electrons.
-
- Posts: 59
- Joined: Fri Sep 24, 2021 5:46 am
Re: Lewis Acids and Bases
Lewis acid accepts electrons
Lewis base gives electrons
A lewis acid should have a positive charge and a lewis base should have a negative charge
Lewis base gives electrons
A lewis acid should have a positive charge and a lewis base should have a negative charge
-
- Posts: 100
- Joined: Fri Sep 24, 2021 5:49 am
Re: Lewis Acids and Bases
Hi! Lewis acids accept an electron pair while Lewis bases donate an electron pair. If a molecule has a lone pair and is negatively charged, it is likely to be a Lewis base. If a molecule is positively charged it is likely to be a Lewis acid. Molecules with polar double bonds can also accept electrons, so they could be a Lewis acid as well. Hope this helps!
-
- Posts: 103
- Joined: Fri Sep 24, 2021 7:34 am
Re: Lewis Acids and Bases
Hello! Lewis acids accept electrons (electron acceptors) while Lewis bases give the electrons (electron donors).
-
- Posts: 84
- Joined: Fri Sep 24, 2021 5:27 am
Re: Lewis Acids and Bases
A lewis acid is typically accepting electrons, so example OH- F- while a lewis base donates electrons, H+,K+
-
- Posts: 106
- Joined: Fri Sep 24, 2021 5:07 am
Re: Lewis Acids and Bases
Lewis acids are ones that accept electrons so an easy way to tell is if they have a positive charge and in that case in order to have a formal charge of 0 the atom must gain/accept electrons. Lewis bases are the ones that donate electrons and they often times have a negative charge and must give away electrons to have the most stable charge. If there aren't any charges we look at its electronegativity.
-
- Posts: 109
- Joined: Fri Sep 24, 2021 6:09 am
- Been upvoted: 1 time
-
- Posts: 103
- Joined: Fri Sep 24, 2021 7:11 am
Re: Lewis Acids and Bases
Lewis acids are species that accept electrons, while Lewis bases are species that donate electrons. Hope this helps!
-
- Posts: 101
- Joined: Fri Sep 24, 2021 6:58 am
Re: Lewis Acids and Bases
Lewis acids are an electron acceptor where as lewis bases are an electron donor.
Re: Lewis Acids and Bases
If something has a bunch of lone pairs to give up electrons, a lot of the times look for N, then its a lewis base (electron pair donor) and if something is positively charged or doesn't have a full octet like Aluminum, Boron, it has room to accept a pair of electrons and can be viewed as a lewis acid (electron pair acceptor).
-
- Posts: 46
- Joined: Fri Sep 24, 2021 5:35 am
Re: Lewis Acids and Bases
By keeping track of the electron transfer. Lewis acids are electron-pair acceptors while Lewis bases are electron-pair donators.
-
- Posts: 77
- Joined: Fri Sep 24, 2021 6:37 am
Re: Lewis Acids and Bases
The easiest way to remember the difference between a Lewis Acid and a Lewis Base is to remember that a Lewis Acid accepts electrons while a Lewis base donates electrons.
-
- Posts: 55
- Joined: Tue Sep 28, 2021 5:03 am
- Been upvoted: 1 time
Re: Lewis Acids and Bases
I know that when the formula has a negative charge, it’s a base and vice versa for the acid. But how do you determine it when there is no charge on the formula at all
Re: Lewis Acids and Bases
Hi! For the final, we were supposed to know if something was an acid(electron acceptor), and a base(electron donor) There are also many other definitions of acids and bases that we went over in class.
Return to “Polarisability of Anions, The Polarizing Power of Cations”
Who is online
Users browsing this forum: No registered users and 2 guests