what the heck does ka and kb and kw have in common

Question

seriously i have no idea

Answer 1

Kb is the equilibrium dissociation constant of the base, B.  Just like Ka is the acid dissociation constant for the acid HA.

As an example, you can choose NH3 as the base.

NH3 + H2O ==> NH4^+ + OH^-

Kb = [NH4+][OH-]/[NH3]

The larger the Kb, the more OH- will be generated, and the higher the pH.  In a titration, the initial pH will be more alkaline  

Answer 2

 This should explain the kb well, a base titration with NaOH or Sodium Hydroxide. Kb will increase the base pH causing the resulting compound to be more basic: http://employees.oneonta.edu/kotzjc/POWERPOINT/Ch18_Titrations.pdf