The equilibrium of an acid/base reaction will favour the side with the higher acid pK_a.

Question

Quizplus · Accepted Answer

The equilibrium of an acid/base reaction will favor the side with the weaker acid and stronger base. This can be determined by comparing the pKa or pKb values of the reacting species. The lower the pKa/pKb value, the stronger the acid/base. Therefore, the side with the higher acid pKa (or lower acid pKb) will be the weaker acid/base and will be favored in the equilibrium.

The Equilibrium of an Acid/base Reaction Will Favour the Side