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2. Molecular weight data for some polymer are tabulated here. Compute (a) the number- average molecular weight and (b) the weight-average molecular weight. (c) If it is known that this material's degree of polymerization is 710, which one of the polymers listed in Table 14.3 is this polymer? Why? Molecular Weight Range (g/mol) 0.01 15,000–30,000 30,000–45,000 45,000–60,000 60,000–75,000 75,000–90,000 90,000–105,000 105,000–120,000 120,000–135,000 0.04 0.07 0.04 0.16 0.26 0.11 0.24 0.24 0.27 0.12 0.16 0.08 0.12 0.03 0.05

2. Molecular weight data for some polymer are tabulated here. Compute (a) the number- average molecular weight and (b) the weight-average molecular weight. (c) If it is known that this material's degree of polymerization is 710, which one of the polymers listed in Table 14.3 is this polymer? Why? Molecular Weight Range (g/mol) 0.01 15,000–30,000 30,000–45,000 45,000–60,000 60,000–75,000 75,000–90,000 90,000–105,000 105,000–120,000 120,000–135,000 0.04 0.07 0.04 0.16 0.26 0.11 0.24 0.24 0.27 0.12 0.16 0.08 0.12 0.03 0.05

Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN:9781305079250
Author:Mark S. Cracolice, Ed Peters
Publisher:Mark S. Cracolice, Ed Peters
Chapter21: Organic Chemistry
Section: Chapter Questions
Problem 101E
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2. Molecular weight data for some polymer are tabulated here. Compute (a) the number- average molecular weight and (b) the weight-average molecular weight. (c) If it is known that this material's degree of polymerization is 710, which one of the polymers listed in Table 14.3 is this polymer? Why? Molecular Weight Range (g/mol) 15,000–30,000 0.04 0.01 30,000–45,000 45,000–60,000 60,000–75,000 0.07 0.16 0.04 0.11 0.26 0.24 0.24 0.12 75,000–90,000 0.27 90,000–105,000 105,000–120,000 120,000–135,000 0.16 0.08 0.12 0.03 0.05
Transcribed Image Text:2. Molecular weight data for some polymer are tabulated here. Compute (a) the number- average molecular weight and (b) the weight-average molecular weight. (c) If it is known that this material's degree of polymerization is 710, which one of the polymers listed in Table 14.3 is this polymer? Why? Molecular Weight Range (g/mol) 15,000–30,000 0.04 0.01 30,000–45,000 45,000–60,000 60,000–75,000 0.07 0.16 0.04 0.11 0.26 0.24 0.24 0.12 75,000–90,000 0.27 90,000–105,000 105,000–120,000 120,000–135,000 0.16 0.08 0.12 0.03 0.05
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