Achieve #12

[Aren_Kasparian_1G]

Why is the molecule with the most oxygen atoms the weakest acid, is it because HIO is more easily stabilized compared to the other molecules?

[Caroline 2A]

Hi!

Achieve phrased it really nicely by basically saying the more oxygen atoms present, the strength of the bond to hydrogen will then decrease thus increasing the strength of the acid. So, the more oxygen atoms, the stronger the acid.

Hope this helps :)

[Jessica Tam 3H]

Hi,
Adding onto this, the more oxygen atoms there are, the more the electrons are being delocalized, which allows the H atom that is attached to an O to be released more easily. And with more oxygen, it better stabilizes the anion.

[Elena Chan 2L]

Hi! Adding onto this, the molecule with the most oxygen atoms has a resonance structure that delocalizes the charges, stabilizes the anion (base), and allows for easier dissociation of the acid which makes the acid stronger.

[Jessica Phung 1E]

Also, you can think of this in terms of polarity of the anion vs. the cation. If there's more oxygen on one side, the polarity will be greater and thus stabilizing that anion better. Meaning, the hydrogen will be more easily readily lost.

[Morgan Micallef 1A]

The more oxygen atoms there are, the more polar and more stable the compound is, making it a weak acid