Pre-Lab Questions 1. Write a reversible reaction for the buffer decomposition of NH4* into ammonia (NH3") and H ion く→ Net Hf WHI NHg+H 2. What side will the reaction from #4 favors when HCl is added to the solution? 3. What side will the reaction from #4 favors when LİOH is added to the solution?

Pre-Lab Questions 1. Write a reversible reaction for the buffer decomposition of NH4* into ammonia (NH3") and H ion く→ Net Hf WHI NHg+H 2. What side will the reaction from #4 favors when HCl is added to the solution? 3. What side will the reaction from #4 favors when LİOH is added to the solution?

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter15: Acid-base Equilibria

Section: Chapter Questions

Problem 2ALQ: A friend asks the following: Consider a buffered solution made up of the weak acid HA and its salt...

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Which acid in Table 14.2 is most appropriate for preparation of a buffer solution with a pH of 3.1? Explain your choice.
A friend asks the following: Consider a buffered solution made up of the weak acid HA and its salt NaA. If a strong base like NaOH is added, the HA reacts with the OH to form A. Thus the amount of acid (HA) is decreased, and the amount of base (A) is increased. Analogously, adding HCI to the buffered solution forms more of the acid (HA) by reacting with the base (A). Thus how can we claim that a buffered solution resists changes in the pH of the solution? How would you explain buffering to this friend?
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