a) CH 3 CH 2 CONHCH 3 Interpretation: To prepare the given amides by using an acid chloride and an amine or ammonia. Concept introduction: Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Question

(c) The following data have been obtained for the hydrolysis of sucrose, C12H22O11, to glucose, C6H12O6, and fructose C6H12O6, in acidic solution: C12H22O11 + H2O → C6H12O6 + C6H12O6 [sucrose]/mol dm³ t/min 0 0.316 14 0.300 39 0.274 60 0.256 80 0.238 110 0.211 (i) Graphically prove the order of the reaction and determine the rate constant of the reaction. (ii) Determine the half-life, t½ for the hydrolysis of sucrose.

Answer 1

Question

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

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(c) The following data have been obtained for the hydrolysis of sucrose, C12H22O11, to glucose, C6H12O6, and fructose C6H12O6, in acidic solution: C12H22O11 + H2O → C6H12O6 + C6H12O6 [sucrose]/mol dm³ t/min 0 0.316 14 0.300 39 0.274 60 0.256 80 0.238 110 0.211 (i) Graphically prove the order of the reaction and determine the rate constant of the reaction. (ii) Determine the half-life, t½ for the hydrolysis of sucrose.

(III) adsorbent (b) Adsorption of the hexacyanoferrate (III) ion, [Fe(CN)6] ³, on y-Al2O3 from aqueous solution was examined. The adsorption was modelled using a modified Langmuir isotherm, yielding the following values of Kat pH = 6.5: (ii) T/K 10-10 K 280 2.505 295 1.819 310 1.364 325 1.050 Determine the enthalpy of adsorption, AadsHⓇ. If the reported value of entropy of adsorption, Aads Se = 146 J K-1 mol-1 under the above conditions, determine Aads Gº.

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Answer 2

Question

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

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Answer 3

Question

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

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Answer 4

Question

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

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Answer 5

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

Answer 6

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Answer 7

Chapter 21.4, Problem 12P

Interpretation Introduction

a) CH₃CH₂CONHCH₃

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, in deciding the starting materials (reagents) for the synthesis, we observe that there are two distinct parts of the amide viz the acyl part which should come from the respective acyl chloride viz propanoyl chloride; and the amine part , which should come from the oppropriate amine methylamine.

Answer 8

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Answer 9

Interpretation Introduction

b) N,N-Diethylbenzamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Evidently, introspection of the target molecule viz the amide, shows that it has two distinct parts, viz the acyl part, Phco should come from the acid chloride, viz benzoyl chloride, and the amine part should come from the appropriate amine, in this case it is N,N-diethyl amine.

Answer 10

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

Answer 11

Interpretation Introduction

c) Propanamide

Interpretation:

To prepare the given amides by using an acid chloride and an amine or ammonia.

Concept introduction:

Introspection of the target amide shows that there are two distinct parts viz, the acyl part and the amine part the acyl part should come from the appropriate acid chloride in this case, it is propanoyl chloride while the amine part should be provided from ammonia.

Answer 12

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Answer 23

Ch. 21.1 - Give IUPAC names for the following substances:Ch. 21.1 - Draw structures corresponding to the following...Ch. 21.2 - Prob. 3P Ch. 21.2 - Rank the compounds in each of the following sets...Ch. 21.2 - Predict the products of the following nucleophilic...Ch. 21.2 - Prob. 6P Ch. 21.3 - Prob. 7P Ch. 21.3 - If the following molecule is treated with acid...Ch. 21.4 - How might you prepare the following esters using a...Ch. 21.4 - Prob. 10P

Solution Summary: The author explains the mechanism of the nucleophilic acyl substitution reaction.

Chapter 21 Solutions