Which one of the following combinations cannot function as a buffer solution A) HCN and KCN B) NH₃ and (NH₄)₂SO₄ C) HNO₃ and NaNO₃ D) HF and NaF E) HNO₂ and NaNO₂

Question

Quizplus · Accepted Answer

A buffer solution consists of a weak acid and its conjugate base or a weak base and its conjugate acid. HNO3 (nitric acid) is a strong acid, and NaNO3 is its salt. Since HNO3 fully dissociates in water, it cannot form a buffer solution with its salt.

Which One of the Following Combinations Cannot Function as a Buffer