An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? Xi 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Wi 0.02 0.08 0.17 0.29 0.23 0.16 0.05 O a. Polypropylene with a monomer molecular weight of 42.08 g/mol O b. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol O c. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol O d. Polycarbonate with a monomer molecular weight of 61.0168 g/mol O e. Polystyrene with a monomer molecular weight of 104.15 g/mol

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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An unknown polymer sample was found to have the following molecular weight distribution:
Molecular weight range
8,000 - 20,000
20,000 - 32,000
32,000 - 44,000
44,000 - 56,000
56,000 - 68,000
68,000 - 80,000
80,000 - 92,000
If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample?
a.
Xi
e.
0.05
0.15
0.21
0.28
0.18
0.10
0.03
Wi
0.02
0.08
0.17
0.29
0.23
0.16
Polypropylene with a monomer molecular weight of 42.08 g/mol
O b. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol
c.
Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol
d.
Polycarbonate with a monomer molecular weight of 61.0168 g/mol
Polystyrene with a monomer molecular weight of 104.15 g/mol
0.05
Transcribed Image Text:An unknown polymer sample was found to have the following molecular weight distribution: Molecular weight range 8,000 - 20,000 20,000 - 32,000 32,000 - 44,000 44,000 - 56,000 56,000 - 68,000 68,000 - 80,000 80,000 - 92,000 If the weight average DP for this sample is found to be DP=536, which of the following common polymers is this unknown sample? a. Xi e. 0.05 0.15 0.21 0.28 0.18 0.10 0.03 Wi 0.02 0.08 0.17 0.29 0.23 0.16 Polypropylene with a monomer molecular weight of 42.08 g/mol O b. Polymethylmethacrylate with a monomer molecular weight of 100.121 g/mol c. Polyvinyl chloride with a monomer molecular weight of 62.498 g/mol d. Polycarbonate with a monomer molecular weight of 61.0168 g/mol Polystyrene with a monomer molecular weight of 104.15 g/mol 0.05
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