Ka and Kb
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Re: Ka and Kb
Yes, Ka and Kb are only assigned to weak acids and bases because Ka and Kb are the equilibrium constants for the dissociation of acid or base in the water and if you have a value for Ka and Kb that means that the acid or base isn't fully dissociated yet and not being completely dissociated is related to weak acids and bases as strong acids and bases completely dissociate.
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Re: Ka and Kb
No, strong acids and bases also have Ka and Kb i think, it is just very large (and they also dissociate completely) so there's no real need to use it in problems
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Re: Ka and Kb
Bryan Chen 1H wrote:No, strong acids and bases also have Ka and Kb i think, it is just very large (and they also dissociate completely) so there's no real need to use it in problems
What, hypothetically, would be a situation that we use strong acids'/bases' Ka and/or Kb?
Re: Ka and Kb
No, I believe Ka and Kb values can also apply to strong acids and bases as well as weak ones.
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Re: Ka and Kb
Yes, although I believe strong acids and bases have K values, they are so excessively big.
Re: Ka and Kb
Ka and Kb values can also be given to strong acids and bases they will just be excessively big I think
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Re: Ka and Kb
All acids/bases have a Ka or a Kb but strong acids and bases have such large Ka and Kb's that they are considered to fully dissociate.
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Re: Ka and Kb
ABombino_2J wrote:All acids/bases have a Ka or a Kb but strong acids and bases have such large Ka and Kb's that they are considered to fully dissociate.
I agree. The larger of the value of these constant would indicate strong acids/bases.
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