pKA Significance

[Claire_Sabol_2G]

What exactly is the pKA value measuring? I understand the relationship between acidity, KA, and pKA value, but I'm just unsure as to what the value of pKA is telling us! Any help is appreciated! Thank you!

[jackie-3L]

pKa is just the strength of an acid. The larger the pKa value, the weaker the acid is. This is why strong acids do not have a pKa value. pKa is just the
-log[Ka] where the Ka value is a constant that measures how much of the compound dissociates in an aqueous solution. Hope that helped clear things up!

[Xiang Li 2F]

Ka, and thus pKa measures the strength of an acid! The larger the value of Ka is, the lower value of pKa is, and the stronger the acid is.

[AndreyCastellanos 3H]

pKa is just the strength of an acid. The larger the pKa value, the weaker the acid is

[Chelsea Greene 1L]

pKa determines how strong or weak an acid is, and is found by finding the negative log of the acid dissociation constant.

[Furkan Acar 3C]

pkA is just the strength of an acid I’m pretty sure. Larger number = weaker acid

[Simren Nagra 1D]

pKa helps to tell us the relative strength of an acid: The higher the pKa the weaker the acid and vice versa.