7. The pH titration curve of a weak acid, HA, is shown below. As the titration progresses, HA is converted into its conjugate base, A-. 12 10 8 (a) What is the volume of NaOH at the equivalence point? 35 15 volume of NaOH added (mL) 5 10 20 25 30 (b) At what volume (or volumes) is all of the acid present in the protonated (HA) form? (c) At what volume (or volumes) is all of the acid present in the conjugate base (A') form? (d) At what point along the titration will half the original amount of HA have been converted to A-?
7. The pH titration curve of a weak acid, HA, is shown below. As the titration progresses, HA is converted into its conjugate base, A-. 12 10 8 (a) What is the volume of NaOH at the equivalence point? 35 15 volume of NaOH added (mL) 5 10 20 25 30 (b) At what volume (or volumes) is all of the acid present in the protonated (HA) form? (c) At what volume (or volumes) is all of the acid present in the conjugate base (A') form? (d) At what point along the titration will half the original amount of HA have been converted to A-?
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 93QRT: When 40.00 mL of a weak monoprotic acid solution is titrated with 0.100-M NaOH, the equivalence...
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Transcribed Image Text:7. The pH titration curve of a weak acid, HA, is shown me
below. As the titration progresses, HA is converted into
its conjugate base, A-.
12
10
8
(a) What is the volume of NaOH at the equivalence
point?
2
25
30
35
15
20
volume of NaOH added (mL)
5
10
(b) At what volume (or volumes) is all of the acid
present in the protonated (HA) form?
(c) At what volume (or volumes) is all of the acid present in the conjugate base (A') form?
(d) At what point along the titration will half the original amount of HA have been converted to A-?
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