Determine the pH during the titration of 59.0 mL of 0.389 M benzoic acid (K₂ = 6.3x10-5) by 0.389 M KOH at the following points. (Assume the titration is done at 25 °C.) (a) Before the addition of any KOH (b) After the addition of 14.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 88.5 mL of KOH

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Chapter1: Chemical Foundations
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Consider these titration curves in which three weak bases are titrated with 0.1-M strong acid added from a buret.
The solution in the beaker has a volume of 50.0 mL. The temperature is 25 °C. Determine which base titrated is
the strongest, and determine the value of K, for the base labeled B.
Visited
14
12
10
E
8
6
4
2
0
0
10
C
20
A
B
30 40
mL 0.1 M titrant
O A is the strongest base
B is the strongest base
Oc is the strongest base
50
60
70
Transcribed Image Text:Consider these titration curves in which three weak bases are titrated with 0.1-M strong acid added from a buret. The solution in the beaker has a volume of 50.0 mL. The temperature is 25 °C. Determine which base titrated is the strongest, and determine the value of K, for the base labeled B. Visited 14 12 10 E 8 6 4 2 0 0 10 C 20 A B 30 40 mL 0.1 M titrant O A is the strongest base B is the strongest base Oc is the strongest base 50 60 70
Determine the pH during the titration of 59.0 mL of 0.389 M benzoic acid (K₂ = 6.3x10-5) by 0.389 M KOH at
the following points. (Assume the titration is done at 25 °C.)
(a) Before the addition of any KOH
(b) After the addition of 14.0 mL of KOH
(c) At the half-equivalence point (the titration midpoint)
(d) At the equivalence point
(e) After the addition of 88.5 mL of KOH
Transcribed Image Text:Determine the pH during the titration of 59.0 mL of 0.389 M benzoic acid (K₂ = 6.3x10-5) by 0.389 M KOH at the following points. (Assume the titration is done at 25 °C.) (a) Before the addition of any KOH (b) After the addition of 14.0 mL of KOH (c) At the half-equivalence point (the titration midpoint) (d) At the equivalence point (e) After the addition of 88.5 mL of KOH
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