Problem 21.18 The p K a ' s of ethyl acetoacetate and diethyl malonate are 11 and 13 , respectively. Write a structural formula for the most stable enolate of each using resonance to show the electron delocalization in each enolate. Interpretation: The structural formulas for the most stable enolate of ethyl acetoacetate and diethyl malonate is to be drawn and by considering the resonance the delocalization of electrons in each enolate is to be shown. Concept Introduction: > Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond. The removal of an alpha hydrogen atom from aldehyde or ketone forms enolate ion. > Resonance structure is a blend of two or more Lewis structures. Resonance structures are represented by a double headed arrow between the structures.

Question

These are in the wrong boxes. Why does the one on the left have a lower molar mass than the one on the right?

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.6, Problem 18P

Interpretation Introduction

Problem 21.18

The pKa's of ethyl acetoacetate and diethyl malonate are 11 and 13, respectively. Write a structural formula for the most stable enolate of each using resonance to show the electron delocalization in each enolate.

Interpretation:

The structural formulas for the most stable enolate of ethyl acetoacetate and diethyl malonate is to be drawn and by considering the resonance the delocalization of electrons in each enolate is to be shown.

Concept Introduction:
>
Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond. The removal of an alpha hydrogen atom from aldehyde or ketone forms enolate ion.
>
Resonance structure is a blend of two or more Lewis structures. Resonance structures are represented by a double headed arrow between the structures.

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These are in the wrong boxes. Why does the one on the left have a lower molar mass than the one on the right?

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Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely: (a) 0.200 M HCl

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.6, Problem 18P

Interpretation Introduction

Problem 21.18

The pKa's of ethyl acetoacetate and diethyl malonate are 11 and 13, respectively. Write a structural formula for the most stable enolate of each using resonance to show the electron delocalization in each enolate.

Interpretation:

The structural formulas for the most stable enolate of ethyl acetoacetate and diethyl malonate is to be drawn and by considering the resonance the delocalization of electrons in each enolate is to be shown.

Concept Introduction:
>
Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond. The removal of an alpha hydrogen atom from aldehyde or ketone forms enolate ion.
>
Resonance structure is a blend of two or more Lewis structures. Resonance structures are represented by a double headed arrow between the structures.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.6, Problem 18P

Interpretation Introduction

Problem 21.18

The pKa's of ethyl acetoacetate and diethyl malonate are 11 and 13, respectively. Write a structural formula for the most stable enolate of each using resonance to show the electron delocalization in each enolate.

Interpretation:

The structural formulas for the most stable enolate of ethyl acetoacetate and diethyl malonate is to be drawn and by considering the resonance the delocalization of electrons in each enolate is to be shown.

Concept Introduction:
>
Enol refers to an intermediate structure that consists of an alkene group connected with a hydroxyl group at one end of its double bond. The removal of an alpha hydrogen atom from aldehyde or ketone forms enolate ion.
>
Resonance structure is a blend of two or more Lewis structures. Resonance structures are represented by a double headed arrow between the structures.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 21.6, Problem 18P

Interpretation Introduction