Which of the following yields a buffer solution when equal volumes of the two solutions are mixed A) 0.10M HCl and 0.10 M NaCl B) 0.15 M HNO₃ and 0.15 M NaNO₃ C) 0.10M HF and 0.10M NaF D) 0.10M HClO₄ and 0.10 NaClO₄ E) 0.15M HBr and 0.15M NaBr

Question

Quizplus · Accepted Answer

A buffer solution is made up of a weak acid and its conjugate base or a weak base and its conjugate acid. Option C contains a weak acid, HF, and its conjugate base, NaF, which can form a buffer solution when mixed in equal volumes. Option A contains a strong acid and its corresponding salt, while option B contains strong acid and strong base. Option D and E contain strong acids and their corresponding salts, which cannot form buffer solutions. Therefore, the best choice is option C.

Which of the Following Yields a Buffer Solution When Equal