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

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

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

Draw the products of each acid-base reaction.

a.

b.

Label the Lewis acid and Lewis base in each reaction. Use curved arrows to show the movement of electron pairs.

a.

b.

Which compound in each pair is the strongest acid?

a.

or

b.

or

Answer the following questions about esmolol, a drug used to treat high blood pressure sold under the trade name Brevibloc.

a. Label the most acidic hydrogen atom

b. What products are formed when esmolol is treated with NaH?

c. What products are formed when esmolol is treated with HCl?

d. Label all ${sp}^{2}$ hybridized C atoms. in esmolol.

e. Label the only trigonal pyramidal atom.

f. Label all C’s that bear a $δ^{+}$ charge.

Compounds like amphetamine that contain nitrogen atoms are protonated by the HCl in the gastric juices of the stomach, and the resulting salt is then deprotonated in the basic environment of the intestines to regenerate the neutral form. Write proton transfer reactions for both of these processes. In which form will amphetamine pass through a cell membrane?

See all solutions

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