A buffer solution will result when ____ is added to a solution of K₃PO₄. A) NH₃ B) K₂HPO₄ C) NaOH D) Na₃PO₄ E) KCl

Question

Quizplus · Accepted Answer

To form a buffer solution, we need both a weak acid and its conjugate base or a weak base and its conjugate acid. The given compound K₃PO₄ is a salt and therefore, can act as a conjugate base. To form a buffer solution, we need to add a weak acid to this salt. Option B, K₂HPO₄, is a weak acid and will form a buffer solution when added to the given compound. Other options do not provide a weak acid to form a buffer solution.

A Buffer Solution Will Result When ____ Is Added to a Solution