---
title: "A student attempts to prepare a buffer solution by mixing equal volumes of two \\(0.20 \\, \\text{M}\\) aqueous solutions. Which of the following pairs of solutions will produce an effective buffer solution?"
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date_modified: "2026-08-21T05:52:06+00:00"
---

# A student attempts to prepare a buffer solution by mixing equal volumes of two \(0.20 \, \text{M}\) aqueous solutions. Which of the following pairs of solutions will produce an effective buffer solution?

A student attempts to prepare a buffer solution by mixing equal volumes of two \(0.20 \, \text{M}\) aqueous solutions. Which of the following pairs of solutions will produce an effective buffer solution?

- **A.** \(0.20 \, \text{M} \, \text{HCl(aq)}\) and \(0.20 \, \text{M} \, \text{NaOH(aq)}\)
- **B.** \(0.20 \, \text{M} \, \text{HF(aq)}\) and \(0.20 \, \text{M} \, \text{NaOH(aq)}\)
- **C.** \(0.20 \, \text{M} \, \text{HF(aq)}\) and \(0.20 \, \text{M} \, \text{NaF(aq)}\)
- **D.** \(0.20 \, \text{M} \, \text{HCl(aq)}\) and \(0.20 \, \text{M} \, \text{NaF(aq)}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119255/*