**Which of the following aqueous solutions are good buffer systems?** *(Select all that apply.)*- [ ] 0.12 M hydrocyanic acid + 0.10 M sodium cyanide- [ ] 0.22 M hydroiodic acid + 0.19 M potassium iodide- [ ] 0.25 M ammonia + 0.35 M barium hydroxide- [ ] 0.15 M sodium hydroxide + 0.26 M sodium bromide- [ ] 0.37 M barium perchlorate + 0.20 M potassium perchlorate**Explanation:**The list contains combinations of acids, bases, and their respective salts. A good buffer system typically consists of a weak acid with its conjugate base or a weak base with its conjugate acid. This configuration allows the solution to resist changes in pH when small amounts of an acid or base are added. **Which of the following aqueous solutions are good buffer systems?***(Select all that apply.)*- [ ] 0.21 M hydrofluoric acid + 0.17 M potassium fluoride- [ ] 0.21 M hydrochloric acid + 0.20 M sodium chloride- [ ] 0.25 M ammonia + 0.36 M ammonium bromide- [ ] 0.18 M sodium hydroxide + 0.27 M sodium chloride- [ ] 0.32 M barium perchlorate + 0.26 M barium chloride

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.21 M hydrofluoric acid + 0.17 M potassium fluoride O 0.21 M hydrochloric acid + 0.20 M sodium chloride O 0.25 M ammonia + 0.36 M ammonium bromide 0.18 M sodium hydroxide + 0.27 M sodium chloride 0.32 M barium perchlorate + 0.26 M barium chloride

Which of the following aqueous solutions are good buffer systems? (Select all that apply.) 0.21 M hydrofluoric acid + 0.17 M potassium fluoride O 0.21 M hydrochloric acid + 0.20 M sodium chloride O 0.25 M ammonia + 0.36 M ammonium bromide 0.18 M sodium hydroxide + 0.27 M sodium chloride 0.32 M barium perchlorate + 0.26 M barium chloride

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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