how to find the conjugate base

Moderators: Chem_Mod, Chem_Admin

Hannah Kaye 1L
Posts: 108
Joined: Fri Sep 24, 2021 5:55 am

how to find the conjugate base

Postby Hannah Kaye 1L » Mon Nov 29, 2021 8:31 pm

Hi, how do we find the conjugate base?

Lucy Farnham 1G
Posts: 50
Joined: Fri Sep 24, 2021 6:25 am

Re: how to find the conjugate base

Postby Lucy Farnham 1G » Mon Nov 29, 2021 8:40 pm

the conjugate base is simply the base remaining when an acid donates a proton. For example, the conjugate base of HCN is just CN-.

Holly Do 2J
Posts: 104
Joined: Fri Sep 24, 2021 5:11 am

Re: how to find the conjugate base

Postby Holly Do 2J » Tue Nov 30, 2021 2:26 pm

The conjugate base is basically one less H+ atom in the compound itself.

Sarah Hong 2K
Posts: 102
Joined: Fri Sep 24, 2021 5:48 am

Re: how to find the conjugate base

Postby Sarah Hong 2K » Tue Nov 30, 2021 3:10 pm

Conjugate bases is the base that remains when an bronsted acid donates a proton (H+ is the proton donor).

loganchun
Posts: 100
Joined: Fri Sep 24, 2021 7:34 am
Been upvoted: 1 time

Re: how to find the conjugate base

Postby loganchun » Tue Nov 30, 2021 3:31 pm

When finding the conjugate base of a reaction, you are essentially taking away a H+ proton. For instance, in HCl + H2O --> H3O+ + Cl-, HCl donates a H+ to H2O making H3O+ and Cl- (the conjugate base).

505706331
Posts: 100
Joined: Fri Sep 24, 2021 7:05 am

Re: how to find the conjugate base

Postby 505706331 » Tue Nov 30, 2021 3:56 pm

the conjugate base is basically the atom that would accept the proton if the reaction were to be reversed.

Kimia Rategh 2A
Posts: 100
Joined: Fri Sep 24, 2021 5:50 am

Re: how to find the conjugate base

Postby Kimia Rategh 2A » Tue Nov 30, 2021 4:10 pm

Hi! So a conjugate base is simply the resulting compound after an acid gives up a proton. Similarly, a conjugate acid is the resulting compound after a base accepts a proton. For example: NH3 + H2O --> NH4+ + OH-. NH4+ would be the conjugate acid since NH3, which is a base has accepted a proton from water resulting in hydroxide and NH4+ (which is just NH3 which a proton now). The opposite reaction can be used as an example of an acid and its conjugate base. Hope this helps!

Jahnavi Srinivas 2H
Posts: 50
Joined: Fri Sep 24, 2021 6:02 am

Re: how to find the conjugate base

Postby Jahnavi Srinivas 2H » Tue Nov 30, 2021 4:44 pm

Take away 1 H and subtract the charge by 1. This will result in a conjugate base of a Bronsted acid.

905701360
Posts: 51
Joined: Fri Sep 24, 2021 7:30 am

Re: how to find the conjugate base

Postby 905701360 » Tue Nov 30, 2021 5:52 pm

You can subtract 1 H+ from the atom.

Vashe Sundar 3H
Posts: 109
Joined: Fri Sep 24, 2021 6:09 am
Been upvoted: 1 time

Re: how to find the conjugate base

Postby Vashe Sundar 3H » Tue Nov 30, 2021 7:14 pm

To find the conjugate base, you will need to remove the H+ from the compound. For example, HF would just be F-, since a positive H was lost.

Genelle Marcelino-Searles 2G
Posts: 102
Joined: Sun Sep 26, 2021 5:00 am

Re: how to find the conjugate base

Postby Genelle Marcelino-Searles 2G » Tue Nov 30, 2021 8:06 pm

The conjugate base is the remainder of the acid when it donates the proton to the base.

Iman Gauhar 3E
Posts: 104
Joined: Fri Sep 24, 2021 6:52 am

Re: how to find the conjugate base

Postby Iman Gauhar 3E » Tue Nov 30, 2021 9:01 pm

The conjugate base of a Bronsted acid is the species formed after an acid donates a proton.

HCl(aq)+H2O(l)→H3O+(aq)+Cl−(aq)

The acid in this chemical equation is the reactant, HCl, and the conjugate base is the product, CL-, because the HCl has donated a proton.

Neha Jonnalagadda 2D
Posts: 110
Joined: Fri Sep 24, 2021 7:06 am

Re: how to find the conjugate base

Postby Neha Jonnalagadda 2D » Wed Dec 01, 2021 2:30 pm

The conjugate base is basically the compound minus one H, meaning that it donates a proton.

Trisha Nagin
Posts: 52
Joined: Fri Sep 24, 2021 5:25 am

Re: how to find the conjugate base

Postby Trisha Nagin » Wed Dec 01, 2021 2:39 pm

Take out the H and subtract a proton from the charge.

Carmen Kim 3I
Posts: 51
Joined: Fri Sep 24, 2021 5:43 am

Re: how to find the conjugate base

Postby Carmen Kim 3I » Wed Dec 01, 2021 2:48 pm

Hi,
The formula to solve for the conjugate base is the one less hydrogen atom. The conjugate base is the remainder of the acid when it accepts the proton.

Darlene Luu 1H
Posts: 50
Joined: Fri Sep 24, 2021 7:31 am

Re: how to find the conjugate base

Postby Darlene Luu 1H » Wed Dec 01, 2021 3:27 pm

You can find the conjugate base by removing an H+.

Caitlyn Lo 2F
Posts: 99
Joined: Fri Sep 24, 2021 6:06 am

Re: how to find the conjugate base

Postby Caitlyn Lo 2F » Wed Dec 01, 2021 7:00 pm

The conjugate base is the acid after it donates the proton to the base

Daniel Tabibian 3K
Posts: 107
Joined: Fri Sep 24, 2021 5:02 am

Re: how to find the conjugate base

Postby Daniel Tabibian 3K » Wed Dec 01, 2021 8:05 pm

The conjugate base would be the acid one it has donated one of its protons. The molecular formula would be the same minus 1 H+ ion and the charge would be one less as well due to this.

NaomiAbramowicz1H
Posts: 51
Joined: Fri Sep 24, 2021 6:04 am
Been upvoted: 1 time

Re: how to find the conjugate base

Postby NaomiAbramowicz1H » Wed Dec 01, 2021 8:37 pm

You take away an H and make it more negative. For example, HCl becomes Cl-.


Return to “Conjugate Acids & Bases”

Who is online

Users browsing this forum: No registered users and 4 guests