Question 4 The following table lists molecular weight data for a polytetrafluoroethylene material. Compute the following: a) the number-average molecular weight b) the weight-average molecular weight Molecular Weight Range W₁ (g/mol) 10000 20000 0.01 20000 30000 0.04 30000 40000 0.11 40000 50000 0.23 50000 60000 0.24 60000 70000 0.18 70000 80000 0.12 80000 90000 0.07 X₁ 0.03 0.09 0.15 0.25 0.22 0.14 0.08 0.04 3

Question 4 The following table lists molecular weight data for a polytetrafluoroethylene material. Compute the following: a) the number-average molecular weight b) the weight-average molecular weight Molecular Weight Range W₁ (g/mol) 10000 20000 0.01 20000 30000 0.04 30000 40000 0.11 40000 50000 0.23 50000 60000 0.24 60000 70000 0.18 70000 80000 0.12 80000 90000 0.07 X₁ 0.03 0.09 0.15 0.25 0.22 0.14 0.08 0.04 3

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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The following table lists molecular weight data for a polypropylene material. Compute the weight-average molecular weight, Molecular Weight Range (g/mol)//// xi////// wi 8,000–16,000//// 0.05/// 0.02 16,000–24,000 ///0.16// 0.10 24,000–32,000 ///0.24// 0.20 32,000–40,000 ///0.28// 0.30 40,000–48,000 ///0.20// 0.27 48,000–56,000 ///0.07// 0.11 Round your answer to 0 decimal places.
The following table lists molecular weight data for a polypropylene material. Compute the number-average molecular weight, Molecular Weight Range (g/mol)//// xi////// wi 8,000–16,000//// 0.05/// 0.02 16,000–24,000 ///0.16// 0.10 24,000–32,000 ///0.24// 0.20 32,000–40,000 ///0.28// 0.30 40,000–48,000 ///0.20// 0.27 48,000–56,000 ///0.07// 0.11 Round your answer to 0 decimal places.
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