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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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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](https://content.bartleby.com/qna-images/question/d4601b33-c597-4a6a-8f91-c671732420f5/886ee628-a206-41db-8baa-18c4504dc3a3/977xik9_thumbnail.png)
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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