The structures of peptides formed by the condensation reaction of the given orders of L − amino acids are to be identified. Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid. To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

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Answer 1

Question

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

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Question 19 0/2 pts 3 Details You have a mixture of sodium chloride (NaCl) and potassium chloride (KCl) dissolved in water and want to separate out the Cl- ions by precipitating them out using silver ions (Ag+). The chemical equation for the net ionic reaction of NaCl and KCl with silver nitrate, AgNO3, is shown below. Ag+(aq) + Cl(aq) → AgCl(s) The total mass of the NaCl/KCl mixture is 1.299 g. Adding 50.42 mL of 0.381 M solution precipitates out all of the Cl-. What are the masses of NaCl and KCl in the mixture? Atomic masses: g: Mass of NaCl g: Mass of KCL Ag = 107.868 g mol- 1 Cl = 35.453 g mol- 1 K = 39.098 g mol- N = 14.007 g mol−1 Na = 22.99 g mol−1 0 = 15.999 g mol 1 Question Help: ✓ Message instructor Submit Question

Part 1. Draw monomer units of the following products and draw their reaction mechanism (with arrow pushing) Polyester fiber Using a) pthalic anhydride + anhydrous sodium acetate + ethylene glycol B)pthalic anhydride + anhydrous sodium acetate + glycerol

Identify the missing starting materials/ reagents/ products in the following reactions. Show the stereochemistry clearly in the structures, if any. If there is a major product, draw the structures of the major product with stereochemistry clearly indicated where applicable. Show only the diastereomers (you do not have to draw the pairs of enantiomers). If you believe that multiple products are formed in approximately equal amounts (hence neither is the major product), draw the structures of the products, and show the detailed mechanism of these reactions to justify the formation of the multiple products. If you believe no product is formed, explain why briefly. (6 mark for each, except f and g, which are 10 mark each)

Answer 2

Question

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Expert Solution & Answer

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Answer 3

Question

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Expert Solution & Answer

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Answer 5

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Answer 6

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

Answer 7

Chapter 20, Problem 20.42QP

(a)

Interpretation Introduction

Interpretation: The structures of peptides formed by the condensation reaction of the given orders of L−amino acids are to be identified.

Concept introduction: Peptide bond is formed by the condensation of the amino group of one amino acid with the carboxylic group of another amino acid.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as glycine, tyrosine and aspartic acid.

Answer 8

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

Answer 9

(b)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

Answer 10

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Answer 11

(c)

Interpretation Introduction

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

Answer 12

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Answer 13

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Answer 14

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Answer 15

Ch. 20.2 - Prob. 1PE Ch. 20.2 - Prob. 2PE Ch. 20.2 - Prob. 3PE Ch. 20.3 - Prob. 4PE Ch. 20.3 - Prob. 5PE Ch. 20.3 - Prob. 6PE Ch. 20.6 - Prob. 7PE Ch. 20.6 - Prob. 8PE Ch. 20 - Prob. 20.1VP Ch. 20 - Prob. 20.2VP

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To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as serine, threonine and leucine.

To determine: The structure of peptide formed by the condensation reaction of the amino acids in the order as asparagine, lysine and histidine.

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