s. An appropriate dipole distribution? B. S0 D.30 26. Thioglycolic acid, HSCH,CO.H, a substance used in depilatory agents (hale removers) has pk. 3.42. What is the percent ionizetion of thloglycolle acid in a solution at pH 3.0? A. 72% E. 78% D. 0.38% B. 28K F. 22% C 1.38% G. 71N 27. In humans, the final product of purine degradation from DNA is uric acid, pk. 5.61, which is excreted in the urine. What is the percent ioniration of uric acid in urine at a pH 6.07 A.72% D.0.38% G. 71% Uvie d 8. 28% E. 78% H. 29% C 1.38% F. 22% Order of acidity for COOH? cOM HO co 3.

Organic Chemistry: A Guided Inquiry
2nd Edition
ISBN:9780618974122
Author:Andrei Straumanis
Publisher:Andrei Straumanis
Chapter20: Acidity And Pka Of Phenols
Section: Chapter Questions
Problem 14E
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please solve 26 and 27 please
25. An appropriate dipole distribution?
B. 60
D.
26. Thiogiycolic acid, HSCH:CO.H, a substance used in depilatory agents (hair removers) has pk. 3.42. What is
the percent ianization of thloglycole acid in a solution at pH 3.07
A. 72%
E. 78%
D. 0.38%
B. 28%
F. 22%
C. 1.38%
G. 71%
27. In humans, the final product of purine degradation from DNA is uric
acid, pk. 5.61, which is excreted in the urine. What is the percent
ionization or uric acid in urine at a pH 6.0?
A 72%
D.0.38%
G. 71%
Uvie scid
8. 28%
E. 78%
H. 29%
C 1.38%
F. 22%
28. Order of acidity for COOH?
A. 3>2>1
8. 3>1> 2
C. 2>1>3
D. 2>3>1
.coH
coM
29. Which of the following is an electrophile?
A.
B.
C. o
D.
NH2
GSH
HO.
CI
30. The order of reactivity toward nucleophilic acyl substitution?
A. 3>2>1
B. 2>1>3
C 3>1>2
D. 2> 3>1
E. 1>3>2
31. Endorphin! If you are a drug, best
describes you at physiological pH?
A. Acidic
B. Basic
NH2
C Neutral
anhoteric
HO
Transcribed Image Text:25. An appropriate dipole distribution? B. 60 D. 26. Thiogiycolic acid, HSCH:CO.H, a substance used in depilatory agents (hair removers) has pk. 3.42. What is the percent ianization of thloglycole acid in a solution at pH 3.07 A. 72% E. 78% D. 0.38% B. 28% F. 22% C. 1.38% G. 71% 27. In humans, the final product of purine degradation from DNA is uric acid, pk. 5.61, which is excreted in the urine. What is the percent ionization or uric acid in urine at a pH 6.0? A 72% D.0.38% G. 71% Uvie scid 8. 28% E. 78% H. 29% C 1.38% F. 22% 28. Order of acidity for COOH? A. 3>2>1 8. 3>1> 2 C. 2>1>3 D. 2>3>1 .coH coM 29. Which of the following is an electrophile? A. B. C. o D. NH2 GSH HO. CI 30. The order of reactivity toward nucleophilic acyl substitution? A. 3>2>1 B. 2>1>3 C 3>1>2 D. 2> 3>1 E. 1>3>2 31. Endorphin! If you are a drug, best describes you at physiological pH? A. Acidic B. Basic NH2 C Neutral anhoteric HO
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