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4. A weak base titrated with a strong acid. a. In the space below, sketch a titration curve for a weak base being titrated with a strong acid. Be sure to include the pH scale on the y-axis. Assume the base as a K, of 3 x 10s. b. Label: the equivalence point (approximately, assuming it occurs at volume of titrant of 100 mL) and also the half-equivalence point (more precisely assuming the K, given). c. Label: The buffer region.

4. A weak base titrated with a strong acid. a. In the space below, sketch a titration curve for a weak base being titrated with a strong acid. Be sure to include the pH scale on the y-axis. Assume the base as a K, of 3 x 10s. b. Label: the equivalence point (approximately, assuming it occurs at volume of titrant of 100 mL) and also the half-equivalence point (more precisely assuming the K, given). c. Label: The buffer region.

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 51P
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4. A weak base titrated with a strong acid. a. In the space below, sketch a titration curve for a weak base being titrated with a strong acid. Be sure to include the pH scale on the y-axis. Assume the base as a K, of 3 x 105. b. Label: the equivalence point (approximately, assuming it occurs at volume of titrant of 100 mL) and also the half-equivalence point (more precisely assuming the K, given). c. Label: The buffer region. d. With a second color of pen or pencil, add a second curve for a titration with all the same parameters except the base has a K, = 3 x 106. Over what approximate range of pH would this base act as a good buffer? е.
Transcribed Image Text:4. A weak base titrated with a strong acid. a. In the space below, sketch a titration curve for a weak base being titrated with a strong acid. Be sure to include the pH scale on the y-axis. Assume the base as a K, of 3 x 105. b. Label: the equivalence point (approximately, assuming it occurs at volume of titrant of 100 mL) and also the half-equivalence point (more precisely assuming the K, given). c. Label: The buffer region. d. With a second color of pen or pencil, add a second curve for a titration with all the same parameters except the base has a K, = 3 x 106. Over what approximate range of pH would this base act as a good buffer? е.
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