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Chapter 2: 2.38 (page 85)

What is the conjugate acid of each base?
a. ${HCO}_{3}^{-}$
b.
c.
d.

Short Answer

Expert verified

a. $H_{2} {CO}_{3}$

b. role="math" localid="1649075555384" ${CH}_{3} {CH}_{2} {CH}_{2} \overset{+}{N} H_{2} {CH}_{3}$

c. ${CH}_{3} \overset{+}{O} {HCH}_{3}$

d. ${CH}_{3} COOH$

Step by step solution

01

Base

A base can abstract the acidic proton from the acid.

02

Conjugate acid

The conjugate acid is formed through the proton abstraction by a base.

03

Formation of the conjugate acid

a.The base ${HCO}_{3}^{-}$ abstracts the proton and forms its conjugate acid $H_{2} {CO}_{3}$ .

${HCO}_{3}^{-} \overset{H^{+}}{鈫�} H_{2} {CO}_{3}$

b. The base ${CH}_{3} {CH}_{2} {CH}_{2} {NHCH}_{3}$ abstracts the proton and forms its conjugate acid ${CH}_{3} {CH}_{2} {CH}_{2} \overset{+}{N} H_{2} {CH}_{3}$ .

Formation of a conjugate acid

c.The base ${CH}_{3} {OCH}_{3}$ abstracts the proton and forms its conjugate acid ${CH}_{3} \overset{+}{O} {HCH}_{3}$ .

Formation of a conjugate acid

d.The base ${CH}_{3} {COO}^{-}$ abstracts the proton and forms its conjugate acid ${CH}_{3} COOH$ .

Formation of a conjugate acid

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Most popular questions from this chapter

Label each statement as True or False.

a. ${CH}_{3} {CH}_{2}^{+}$ is the conjugate acid of ${CH}_{2} = {CH}_{2}$ .

b. ${CH}_{3} {CH}_{2}^{-}$ is the conjugate base of ${CH}_{3} {CH}_{2}^{+}$ .

c. ${CH}_{2} = {CH}_{2}$ is the conjugate base of ${CH}_{3} {CH}_{2}^{-}$ .

d. ${CH}_{2} = {CH}^{-}$ is the conjugate base of ${CH}_{2} = {CH}_{2}$ .

e. ${CH}_{3} {CH}_{3}$ is the conjugate acid of ${CH}_{3} {CH}_{2}^{-}$ .

Bupivacaine (trade name Marcaine) is a quick-acting anesthetic often used during labor and delivery. Which nitrogen atom in bupivacaine is more basic? Explain your reasoning.

Label the acid and base and the conjugate acid and base in the following reactions. Use curved arrows to show the movement of electron pairs.

a.

b.

Answer the following questions about the four species A-D.

a. Which two species represent a conjugate acid-base pair?

b. Which two species represent resonance structures?

c. Which two species represent constitutional isomers?

Which compound in each pair of isomers is the stronger acid?

a.

or

b.

or

See all solutions

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