Ka and Kb

Moderators: Chem_Mod, Chem_Admin

Bianca Barcelo 4I
Posts: 74
Joined: Fri Sep 28, 2018 12:17 am
Been upvoted: 1 time

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!


Return to “Equilibrium Constants & Calculating Concentrations”

Who is online

Users browsing this forum: No registered users and 8 guests