(a) Interpretation: The fragmentation mechanisms for the observation of strong peak at m / z = 74 in EI mass spectrum of 2-methylpentanoic acid is to be stated. Concept introduction: The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

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Answer 1

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Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

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B. Classify the following amino acid. Atoms other than carbon and hydrogen are labeled. a. acidic b. basic C. neutral C. Consider the following image. Which level of protein structure is shown here? a. primary b. secondary c. tertiary d. quaternary D. Consider the following image. H RH H HR H R HR HR RH Which level of protein structure is shown in the box? a. primary b. secondary R c. tertiary d. quaternary コー R

Briefly answer three from the followings: a. What are the four structures of the protein? b. Why is the side chain (R) attached to the alpha carbon in the amino acids is important for the function? c. What are the types of amino acids? And how is it depend on the (R) structure? d. Write a reaction to prepare an amino acid. prod

Answer 2

Question

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

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Answer 3

Question

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

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Answer 4

Question

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

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Answer 5

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

Answer 6

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Answer 7

Chapter 20, Problem 20.56AP

Interpretation Introduction

(a)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=74 in EI mass spectrum of 2-methylpentanoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule, it ejects an electron. The molecule results in the formation of the radical cation. This radical cation is then fragmented into small pieces. The rate of fragmentation depends upon the stability of the radical cation.

Answer 8

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

Answer 9

Interpretation Introduction

(b)

Interpretation:

The fragmentation mechanisms for the observation of strong peak at m/z=105 and

m/z=77 in EI mass spectrum of benzoic acid is to be stated.

Concept introduction:

The EI mass spectrum is one of the types of mass spectrum in which an organic compound is vaporized and is analyzed by the bombardment with high energy electrons. When high energy passes by the molecule it ejects an electron the molecules results in the formation of the radical cation. This radical cation is then fragmented into small pieces and rate of fragmentation depends upon the stability of the radical cation.

Answer 10

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Answer 11

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Answer 12

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Answer 13

Ch. 20 - Prob. 20.1P Ch. 20 - Prob. 20.2P Ch. 20 - Prob. 20.3P Ch. 20 - Prob. 20.4P Ch. 20 - Prob. 20.5P Ch. 20 - Prob. 20.6P Ch. 20 - Prob. 20.7P Ch. 20 - Prob. 20.8P Ch. 20 - Prob. 20.9P Ch. 20 - Prob. 20.10P

Solution Summary: The author explains the fragmentation mechanisms for the observation of strong peak at m/z=74 in the EI mass spectrum.

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