The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated. Concept Introduction: The formula to calculate the molecular weight of a repeat unit is: ( MW ) repeat unit = ∑ i a i E i ..... (1) Here, a i is the stoichiometric number of element E i present in the repeat unit.

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Answer 1

Question

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

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Answer 2

Question

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

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Answer 3

Question

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

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Answer 4

Question

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

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Answer 5

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Answer 6

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Answer 7

Chapter 16, Problem 16.16P

Interpretation Introduction

Interpretation:

The molecular weights of all the repeat units of the polymers given in table 16.3 are to be calculated.

Concept Introduction:

The formula to calculate the molecular weight of a repeat unit is:

(MW)repeat unit=∑iaiEi ..... (1)

Here, ai is the stoichiometric number of element Ei present in the repeat unit.

Answer 8

Expert Solution & Answer

Answer to Problem 16.16P

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

Explanation of Solution

Name of all the polymers and molecular formula of their repeat units from table 16.3 are:

1. Polyethylene (−[C2H4]−)

2. Polyvinyl chloride (−[C2H3Cl]−)

3. Polypropylene (−[C3H6]−)

4. Polystyrene (−[C8H8]−)

5. Polyacrylonitrile (−[C3H3N]−)

6. Polymethyl methacrylate (−[C5H8O2]−)

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

8. Polytetrafluoroethylene (−[C2F4]−)

Use equation (1) to calculate the molecular weight of the repeat unit of all the polymers as:

1. Polyethylene (−[C2H4]−)

(MW)−[ C 2 H 4]−=(2×C)+(4×H)=(2×12)+(4×1)=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−)

(MW)−[ C 2 H 3Cl]−=(2×C)+(3×H)+(1×Cl)=(2×12)+(3×1)+(1×35.5)=62.5 g/mol

3. Polypropylene (−[C3H6]−)

(MW)−[ C 3 H 6]−=(3×C)+(6×H)=(3×12)+(6×1)=42 g/mol

4. Polystyrene (−[C8H8]−)

(MW)−[ C 8 H 8]−=(8×C)+(8×H)=(8×12)+(8×1)=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−)

(MW)−[ C 3 H 3N]−=(3×C)+(3×H)+(1×N)=(3×12)+(3×1)+(1×14)=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−)

(MW)−[ C 5 H 8 O 2]−=(5×C)+(8×H)+(2×O)=(5×12)+(8×1)+(2×16)=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−)

(MW)−[ C 2 F 3Cl]−=(2×C)+(3×F)+(1×Cl)=(2×12)+(3×19)+(1×35.5)=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−)

(MW)−[ C 2 F 4]−=(2×C)+(4×F)=(2×12)+(4×19)=100 g/mol

Answer 12

Conclusion

The molecular weights of all the repeat units of the polymers given in table 16.3 are:

1. Polyethylene (−[C2H4]−), (MW)repeat unit=28 g/mol

2. Polyvinyl chloride (−[C2H3Cl]−), (MW)repeat unit=62.5 g/mol

3. Polypropylene (−[C3H6]−), (MW)repeat unit=42 g/mol

4. Polystyrene (−[C8H8]−), (MW)repeat unit=104 g/mol

5. Polyacrylonitrile (−[C3H3N]−), (MW)repeat unit=53 g/mol

6. Polymethyl methacrylate (−[C5H8O2]−), (MW)repeat unit=100 g/mol

7. Polychlorotrifluoroethylene (−[C2F3Cl]−), (MW)repeat unit=116.5 g/mol

8. Polytetrafluoroethylene (−[C2F4]−), (MW)repeat unit=100 g/mol

Answer 13

Ch. 16 - Prob. 16.1P Ch. 16 - Prob. 16.2P Ch. 16 - Prob. 16.3P Ch. 16 - Prob. 16.4P Ch. 16 - Prob. 16.5P Ch. 16 - Prob. 16.6P Ch. 16 - Prob. 16.7P Ch. 16 - Prob. 16.8P Ch. 16 - Prob. 16.9P Ch. 16 - Prob. 16.10P

Answer to Problem 16.16P

Explanation of Solution

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