10. You're tasked with making 100 mL of 50 mM acetate buffer with a pH of 5. You have a solution 0.3 M acetic acid and sodium acetate powder (82 g/mol) available to you. 1. Hoping to avoid tedious titration, what volume of the acetic acid solution and what mass of sodium acetate powder could you combine to theoretically hit pH 5 exactly in ultra-pure water? Assume the acetic acid solution is 100% protonated. (Hint: the combined molar concentration of the acid and conjugate base should be 50 mM.) 2. A lab mate used the last of the sodium acetate, leaving you with only the acetic acid solution. How could you prepare the requested buffer anyway, assuming you have HCI and NaOH solutions to adjust the pH by titration?

10. You're tasked with making 100 mL of 50 mM acetate buffer with a pH of 5. You have a solution 0.3 M acetic acid and sodium acetate powder (82 g/mol) available to you. 1. Hoping to avoid tedious titration, what volume of the acetic acid solution and what mass of sodium acetate powder could you combine to theoretically hit pH 5 exactly in ultra-pure water? Assume the acetic acid solution is 100% protonated. (Hint: the combined molar concentration of the acid and conjugate base should be 50 mM.) 2. A lab mate used the last of the sodium acetate, leaving you with only the acetic acid solution. How could you prepare the requested buffer anyway, assuming you have HCI and NaOH solutions to adjust the pH by titration?

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter15: Additional Aqueous Equilibria

Section: Chapter Questions

Problem 32QRT: The titration curves for two acids with the same base are shown on this graph. (a) Which is the...

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