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How does anion stability contribute to relative acidity?

Posted: Wed Dec 04, 2019 12:33 am
by Angeline 3E
I know the rule that a structure with a more stabilized anion makes that structure stronger but what does it have to do with making the acidity stronger? and why is it more willing to give up an H+? Thanks!

Re: How does anion stability contribute to relative acidity?

Posted: Wed Dec 04, 2019 1:32 am
by WesleyWu_1C
When we say that an acid is stronger, we mean that more of the products are formed. For example, the strong acid HCl dissociates into H+ and Cl-. Since we know that HCl is a strong acid, we know that Cl- is a stable anion because if it wasn't a stable anion it would want to combine back with H+ to become HCl. The more stable the resulting anion is, the stronger the acid.

Re: How does anion stability contribute to relative acidity?

Posted: Wed Dec 04, 2019 1:37 pm
by Chantel_2I
When the anion is stable, the dissociation of the acid is more likely to happen because reactions favor stability. This makes it a stronger acid.

Re: How does anion stability contribute to relative acidity?

Posted: Wed Dec 04, 2019 8:07 pm
by Sears 4A
the more stable the anion on its own, the more likely the acid is to be strong because it is more likely to dissociate in water

Re: How does anion stability contribute to relative acidity?

Posted: Wed Dec 04, 2019 11:12 pm
by Arvind 4G
A more stable anion means that the anion is able to be by itself without reforming the compound it was a part of. Acid strength refers to its ability to form products, namely H+. If the H+ reacts with the anion because the anion isn't stable then the acid is not as strong.

Re: How does anion stability contribute to relative acidity?

Posted: Thu Dec 05, 2019 12:11 am
by brennayoung
Not entirely sure how the anion portion of this affects it but what I learned was that the more stable the base, means it is a weak base, and will produce a strong acid.

Re: How does anion stability contribute to relative acidity?

Posted: Thu Dec 05, 2019 1:16 am
by RoshniVarmaDis1K
When the anion is stable, the forward reaction will occur more often than the reverse reaction because the anion's stability will mean that it is less inclined to bond back to the released proton. This will increase the acidity of the solution.