Which of the following mixtures would result in a buffered solution when 1.0 L of each of the two solutions are mixed. A)0.2 M HNO₃ and 0.2 M NaNO₃ B)0.2 M HNO₃ and 0.4 M HF C)0.2 M HNO₃ and 0.4 M NaF D)0.2 M HNO₃ and 0.4 M NaOH

Question

Quizplus · Accepted Answer

A buffered solution requires a weak acid and its conjugate base, or a weak base and its conjugate acid. In option C, HNO2 (nitrous acid) is a weak acid and NaF is its conjugate base. Therefore, this mixture will result in a buffered solution. None of the other options have a weak acid and its conjugate base or weak base and its conjugate acid, so they will not result in buffered solutions.

Which of the Following Mixtures Would Result in a Buffered