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If we were given a reaction of a weak acid dissociating, then the reverse reaction would be the conjugate base. So if we are given Ka, can we find Kb by taking the inverse? Or should we use that Ka x Kb = Kw every time?
lizettelopez1F wrote:If we are not given Ka, can we just find Ka by using an ice table?
I don't think it would be possible to find Ka value using an ice table if we don't know the variable x. We use the ice table so we can calculate the change in concentration knowing the Ka or Kb value. Instead, to find Ka value, you need to know the concentration of all the reactants and products (aqueous and gaseous) so you can set up an equilibrium equation or use the pKa or pKb value.
Hope this help and correct me if I'm wrong. Thanks!
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