The net charge on arginine in a high- pH aqueous solution has to be predicted. Concept introduction: In the solid state and also in solution, α -amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the − COO − part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the − N + H 3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

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Answer 1

Question

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

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Answer 2

Question

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

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Answer 3

Question

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

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Answer 4

Question

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

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Answer 5

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 6

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 7

Chapter 20, Problem 20.52EP

(a)

Interpretation Introduction

Interpretation: The net charge on arginine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 8

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 9

(b)

Interpretation Introduction

Interpretation: The net charge on glutamic acid in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 10

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 11

(c)

Interpretation Introduction

Interpretation: The net charge on glutamine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 12

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 13

(d)

Interpretation Introduction

Interpretation: The net charge on alanine in a high-pH aqueous solution has to be predicted.

Concept introduction: In the solid state and also in solution, α-amino acids exist as zwitterions. The structure of zwitter ions changes as the pH of the solution changes. In acidic solutions, the −COO− part of the zwitter ion accepts a proton and results in the formation of a positively charged ion. In basic solutions, the −N+H3 part of the zwitter ion loses a proton and results in the formation of a negatively charged species.

Answer 14

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Answer 17

Ch. 20.1 - Prob. 1QQ Ch. 20.1 - Proteins are naturally occurring unbranched...Ch. 20.2 - Prob. 1QQ Ch. 20.2 - How do the various standard amino acids differ...Ch. 20.2 - The number of carboxyl groups and amino groups...Ch. 20.2 - How many different subclassifications are there...Ch. 20.2 - Which of the following statements concerning...Ch. 20.3 - Prob. 1QQ Ch. 20.3 - Proteins from plant sources are a. always complete...Ch. 20.3 - Prob. 3QQ

Solution Summary: The author explains that the net charge on arginine in a high- pH solution has to be predicted.

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