Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Chapter 20, Problem 20.7P
Interpretation Introduction
(a)
Interpretation:
The first and second ionization equations of succinic acid with their
Concept introduction:
Carboxylic acid is a class of organic compound that contains a
Interpretation Introduction
(b)
Interpretation:
The reason as to why the
Concept introduction:
Carboxylic acid is a class of organic compound that contains a
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The preceding equation for the protonation of acetamide shows a hypothetical product that is not actually formed. When acetamide is protonated by a strong enough acid, it does not protonate on nitrogen, but at a different basic site. Draw the structure of the actual conjugate acid of acetamide, and explain (resonance) why protonation occurs where it does rather than on nitrogen. Calculate the pKa of this conjugate acid.
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Chapter 20 Solutions
Organic Chemistry
Ch. 20 - Prob. 20.1PCh. 20 - Prob. 20.2PCh. 20 - Prob. 20.3PCh. 20 - Prob. 20.4PCh. 20 - Prob. 20.5PCh. 20 - Prob. 20.6PCh. 20 - Prob. 20.7PCh. 20 - Prob. 20.8PCh. 20 - Prob. 20.9PCh. 20 - Prob. 20.10P
Ch. 20 - Prob. 20.11PCh. 20 - Prob. 20.12PCh. 20 - Prob. 20.13PCh. 20 - Prob. 20.14PCh. 20 - Prob. 20.15PCh. 20 - Prob. 20.16PCh. 20 - Prob. 20.17PCh. 20 - Prob. 20.18PCh. 20 - Prob. 20.19PCh. 20 - Prob. 20.20PCh. 20 - Prob. 20.21PCh. 20 - Prob. 20.22PCh. 20 - Prob. 20.23PCh. 20 - Prob. 20.24PCh. 20 - Prob. 20.25PCh. 20 - Prob. 20.26PCh. 20 - Prob. 20.27APCh. 20 - Prob. 20.28APCh. 20 - Prob. 20.29APCh. 20 - Prob. 20.30APCh. 20 - Prob. 20.31APCh. 20 - Prob. 20.32APCh. 20 - Prob. 20.33APCh. 20 - Prob. 20.34APCh. 20 - Prob. 20.35APCh. 20 - Prob. 20.36APCh. 20 - Prob. 20.37APCh. 20 - Prob. 20.38APCh. 20 - Prob. 20.39APCh. 20 - Prob. 20.40APCh. 20 - Prob. 20.41APCh. 20 - Prob. 20.42APCh. 20 - Prob. 20.43APCh. 20 - Prob. 20.44APCh. 20 - Prob. 20.45APCh. 20 - Prob. 20.46APCh. 20 - Prob. 20.47APCh. 20 - Prob. 20.48APCh. 20 - Prob. 20.49APCh. 20 - Prob. 20.50APCh. 20 - Prob. 20.51APCh. 20 - Prob. 20.52APCh. 20 - Prob. 20.53APCh. 20 - Prob. 20.54APCh. 20 - Prob. 20.55APCh. 20 - Prob. 20.56APCh. 20 - Prob. 20.57APCh. 20 - Prob. 20.58APCh. 20 - Prob. 20.59APCh. 20 - Prob. 20.60AP
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- The pKa, of the conjugate acid of morpholine is 8.33. (a) Calculate the ratio of morpholine to morpholinium ion in aqueous solution at pH 7.0. (b) At what pH are the concentrations of morpholine and morpholinium ion equal?arrow_forwardYou could extract caffeine from neutral organics by treatment with aqueous HCl (acid). Write the structure of the conjugate acid of caffeine (after treatment with HCl) and explain why it would dissolve in the aqueous layer.arrow_forwardThe hydrolysis of the ester shown here is catalyzed by morpholine. Explain how morpholine catalyzes the reaction. (Hint: The pKa of the conjugateacid of morpholine is 9.3, so morpholine is too weak a base to function as a base catalyst.)arrow_forward
- The pKa values of the carboxylic acid groups of oxaloacetic acid are 2.22 and 3.98. a. Which carboxyl group is the stronger acid? b. The amount of hydrate present in an aqueous solution of oxaloacetic acid depends on the pH of the solution: 95% at pH 0, 81% at pH 1.3, 35% at pH 3.1, 13% at pH 4.7, 6% at pH 6.7, and 6% at pH 12.7. Explain this pH dependence.arrow_forwardWould you expect 2-Chlorobutanoic acid to have higher or lower pka than 4-Chlorobutanoic acid?arrow_forwardPart 1. Choose the stronger acid in each pair of compounds. Part 2. Arrange the following compounds in order of increasing basicity. Part 3. Determine if the oxide is acidic or basearrow_forward
- Treatment of indene with NaNH2 forms its conjugate base in a Brønsted– Lowry acid–base reaction. Draw all reasonable resonance structures for indene's conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.arrow_forwardTreatment of indene with NaNH2 forms its conjugate base in a Brønsted–Lowry acid–base reaction. Draw all reasonable resonance structures for indene’s conjugate base, and explain why the pKa of indene is lower than the pKa of most hydrocarbons.arrow_forward5. Give the structures of the following acids and arrange them in the increasing order of acidity. Give reason.2-Chlorobutanoic acid, 4–chlorobutanoic acid, 3-chloropropanoic acid, 2-chloro propanoic acid and 4-cyanobutanoic acid.arrow_forward
- Kevlar®, a polymeric aromatic amide, is synthesized from the monomers p-phenylenediamine (left) and terephthaloyl chlo-ride (right). The polymer strands are initially aligned randomly,but they are dissolved and spun to give a lightweight, flexible product that is five times stronger than steel of the same weight.(a) Describe this step in terms of a Lewis acid-base reaction. (b) Would you expect water or ammonia to react faster with an acid chloride? Explain.arrow_forwardThe pKa values of the carboxylic acid groups of oxaloacetic acid are 2.22 and 3.98.a. Which carboxyl group is the stronger acid?b. The amount of hydrate present in an aqueous solution of oxaloacetic acid depends on the pH of the solution: 95% at pH 0, 81% at pH 1.3, 35% at pH3.1, 13% at pH 4.7, 6% at pH 6.7, and 6% at pH 12.7. Explain this pH dependence.arrow_forwardWhat is the pKa of Sylvianic Acid if it is 2.3% dissociated at pH = 10.26?arrow_forward
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