○ Is only used to determine the pH of a buffer system
○ Can be molarity, moles or mmols of A- & HA
- The pH of a buffered solution is determined by the ratio of [A-]/[HA]
○ What if the acid and conjugate base are equal in molarity? pH = pKa
- If you know the Ka for an acid, can solve for the Kb value of its conjugate base
○ Use:
- If given weak base/conj acid buffer → must use Kb to solve for pKa
- When you add acid/base to buffer solution → use NmN ICE table