## Protonation & Deprotonation

Caroline Beecher 2H
Posts: 51
Joined: Wed Nov 14, 2018 12:21 am

### Protonation & Deprotonation

What is protonation or deprotonation referring to when talking about acids and bases? How do we calculate percent protonation/deprotonation?

Posts: 100
Joined: Wed Sep 18, 2019 12:19 am

### Re: Protonation & Deprotonation

When referring to acids and bases protonation is gaining a proton so this usually refers to a base as they are the ones that gain an electron and deprotonation refers to the acid because they are the ones giving up a proton.

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

### Re: Protonation & Deprotonation

To calculate % deprotonation (because this is the most common factor that questions ask for),
1) solve for the x variable in the ICE table
2) put x over the initial concentration (Divide x by initial concentration: x/[R])
3) multiply by 100 to convert that to number to a %
4) that is your % deprotonation

KBELTRAMI_1E
Posts: 108
Joined: Sat Jul 20, 2019 12:17 am

### Re: Protonation & Deprotonation

I think that this is what Lavelle was trying to demonstrate using the Lewis structures in the water example of how pH is decided. Like H3O+ vs OH-, OH- is deprotonated and H3O+ is protonated?

KBELTRAMI_1E
Posts: 108
Joined: Sat Jul 20, 2019 12:17 am

### Re: Protonation & Deprotonation

Vincent Leong 2B wrote:To calculate % deprotonation (because this is the most common factor that questions ask for),
1) solve for the x variable in the ICE table
2) put x over the initial concentration (Divide x by initial concentration: x/[R])
3) multiply by 100 to convert that to number to a %
4) that is your % deprotonation

What is the significance of this?

805307623
Posts: 99
Joined: Fri Aug 09, 2019 12:17 am

### Re: Protonation & Deprotonation

Protonation occurs when a proton is added to an atom, molecule, or ion. Protonation and deprotonation occur in most acid-base reaction. A species' mass and charge change, and its chemical properties are altered when it is either protonated or deprotonated. For example, water can be protonated by sulfuric acid: H2SO4 + H2O ⇌ H3O+ + HSO-4

MeeraBhagat
Posts: 95
Joined: Sat Aug 24, 2019 12:15 am

### Re: Protonation & Deprotonation

Protonation occurs when a hydrogen ion is added to a molecule, and deprotonation happens when a molecule loses a proton. Bases are often protonated and acids are usually deprotonated. You calculate % protonation by dividing the product species that has been protonated/deprotonated by its conjugate form on the reactant side, then multiply by 100 to get the percentage.

annikaying
Posts: 94
Joined: Sat Sep 14, 2019 12:16 am

### Re: Protonation & Deprotonation

protonation is the addition of a proton and deprotonation is the removal of a proton. Protonation refers to bases usually and deprotonation to acids.

Pablo 1K
Posts: 118
Joined: Sat Feb 02, 2019 12:15 am

### Re: Protonation & Deprotonation

Protonation for bases mostly and deprotonation for acids. Refers to gaining, losing protons

KaleenaJezycki_1I
Posts: 127
Joined: Sat Aug 17, 2019 12:18 am
Been upvoted: 2 times