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
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Transcribed Image Text: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
Xi
0.03
0.09
0.15
0.25
0.22
0.14
0.08
0.04
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