Ka and Kb

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Bianca Barcelo 4I
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Ka and Kb

Postby Bianca Barcelo 4I » Tue Jan 22, 2019 2:49 pm

How can we tell from Ka and Kb that the acid/base is strong or weak?

Emily Ng_4C
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Ka and Kb

Postby Emily Ng_4C » Tue Jan 22, 2019 3:02 pm

If the Ka or Kb is greater than 10^3, then it is a strong acid or base. If the Ka or Kb is less than 10^-3, then it is a weak acid or weak base

dgerges 4H
Posts: 65
Joined: Fri Sep 28, 2018 12:24 am

Re: Ka and Kb

Postby dgerges 4H » Tue Jan 22, 2019 3:28 pm

Ka reflects how much the acid will disassociate in reaction so a high Ka(higher than 1000) will indicate it being a strong acid and a low Ka(lower than .001) will indicate it being a weak acid.

dgerges 4H
Posts: 65
Joined: Fri Sep 28, 2018 12:24 am

Re: Ka and Kb

Postby dgerges 4H » Tue Jan 22, 2019 3:28 pm

the same goes for Kb and Bases!


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