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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Questions 12, 13, 14

Transcribed Image Text:Chapter 14 Carboxylic Acids and Carboxylic Acid Derivatives
12. Rank order the following carboxylic acids from strongest acid to weakest acid:
(i)
COOH
(ii)
.COOH
(ii)
COOH
a. (i) > (ii) > (ii)
b. (iii) > (ii) > (i)
c. (ii) > (iii) > (i)
d. (ii) > (i) > (iii)
13. In what form(s) will a carboxylic acid, RCOOH, be present if the pH of an aqueous solution is
adjusted to be very much lower than the pKa of the acid?
a. primarily as RCOOH (ag)
b. primarily as RCO0- (ag)
c. equal amounts of a and b
d. neither a nor b
14. In what form(s) will a carboxylic acid, RCOOH, be present if the pH of an aqueous solution is
adjusted to be
a. primarily as RCOOH (ag)
very
much higher than the pKa of the acid?
b. primarily as RCOO- (ag)
c. equal amounts of (a) and (b)
d. neither (a) nor (b)
Expert Solution
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An acid is called strong acid when it's conjugate base after deprotonation is most stable ,here electronegative atom stabilizes acids hence Higher the electronegativity higher is acidic strength
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