[art1]

Hi guys, I am workign on a problem and I am experiencing some confusion.
Heres what I know

 calculating H30+ and OH- in .22M KOH

I can use the Ionization constant formula to figure out my Kb
I use my Kb in my  Kw formula to figure out the concentrations of the OH and H3O Ions

I think this is true but it says in my book that the procedure is different if the base is a weak base because it will no ionize 100% so the M relationships due to stoicheometry won't be the same.

Can anyone tell me how to do this problem?

[Borek]

No need for Kb, assume all KOH is dissociated.

Calculation of pH of strong acid or base.

[art1]

if there was a Kb needed how would I go about using it?

[Borek]

Calculation of pH of weak acid or base.