arrhenius concept-
acid are substances which give H+ in aqueous solns
bases are substances which give OH- in aqueous solns
Ionic product of water is the equilibrium constant for a reaction in which water acts both as an acid and base
solubilty product-
it is the product of the concentrations of the ions, with each concentration raised to a power equal to the coefficient of that ion in the balanced equation for the solubility equilibrium.