Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined. Concept introduction: Solvent used in recrystallization should have below properties. 1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute. 2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures. 3. Boiling point of desired solvent should be low so that it gets separated from crystals easily. 4. Boiling point of solvent should be less than melting point of solid under consideration. 5. There should be no reaction between solvent and substance that needs to be purified.

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Answer 1

Question

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

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Answer 2

Question

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

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Answer 3

Question

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

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Answer 4

Question

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

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Answer 5

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

Answer 6

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

Answer 7

Chapter 3.2, Problem 16E

Interpretation Introduction

Interpretation:Reason for different solubilities of solutes in various solvents on basis of principle of like dissolves like should be determined.

Concept introduction:Solvent used in recrystallization should have below properties.

1. It should be able to dissolve desired compound in itself at high temperatures but insoluble at low temperatures. In short, solvent with favorable temperature coefficient should be used for particular solute.

2. Solvent should be chosen in such way that impurities are either insoluble in it or remain moderately soluble in it at low temperatures.

3. Boiling point of desired solvent should be low so that it gets separated from crystals easily.

4. Boiling point of solvent should be less than melting point of solid under consideration.

5. There should be no reaction between solvent and substance that needs to be purified.

Answer 8

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Answer 9

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Answer 10

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Answer 11

Ch. 3.2 - Prob. 1E Ch. 3.2 - Prob. 2E Ch. 3.2 - Prob. 3E Ch. 3.2 - Prob. 4E Ch. 3.2 - Prob. 5E Ch. 3.2 - Prob. 6E Ch. 3.2 - Prob. 7E Ch. 3.2 - Prob. 8E Ch. 3.2 - Prob. 9E Ch. 3.2 - Prob. 10E

Solution Summary: The author explains how like dissolves like principle is able to explain solubilities of solutes in different solvents.

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