When ?G is positive it is not spontaneous; negative it is spontaneous; equals 0 it is at equilibrium. pH. For what values is a solution acidic basic and neutral? pH = -log[H+] ; The degree of acidity of a solution. <7 =acid; 7 = neutral; >7 = basic. pOH. For what values is a solution acidic basic Conjugate Base - Write conjugate base of HCl When a Bronsted acid donates a proton it becomes its conj