Acid strength relative to kA

Acidity
Basicity
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Shanzey
Posts: 120
Joined: Wed Sep 18, 2019 12:20 am

Acid strength relative to kA

Postby Shanzey » Sun Dec 01, 2019 10:25 pm

In lecture, Dr. Lavelle said that a stronger acid would have a lower pkA. Is this trend the same for kA, or is kA different from pkA? Also, is this true for bases, too?

Shimei_2F
Posts: 100
Joined: Fri Aug 09, 2019 12:17 am

Re: Acid strength relative to kA

Postby Shimei_2F » Sun Dec 01, 2019 10:29 pm

Stronger acids have higher kA and lower pKA while weaker acids have lower kA and higher pKA.

zachary_nhem_4I
Posts: 57
Joined: Sat Aug 17, 2019 12:18 am

Re: Acid strength relative to kA

Postby zachary_nhem_4I » Sun Dec 01, 2019 10:30 pm

No, an acid with a lower pKa will have a greater Ka value because a stronger acid (high Ka value) would be more acidic (lower pKa/pH value). It would then make sense that for bases, the lower the Ka value the higher the pKa value.


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