A sample of a polyethylene rope weighs 15.12 g per cm. If each chain contains 7000 repeat units, calculate, the number of polyethylene chains in a 3 m rope.
A sample of a polyethylene rope weighs 15.12 g per cm. If each chain contains 7000 repeat units, calculate, the number of polyethylene chains in a 3 m rope.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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A sample of a polyethylene rope weighs 15.12 g per cm. If each chain
contains 7000 repeat units, calculate, the number of polyethylene chains in
a 3 m rope.
Transcribed Image Text:An analysis of a sample of polyethylene (Figure Q2) reveals that there are six
lengths of chain with the number of chains of each length shown in Table Q2.
Polyethylene
Number of Chains
Repeating (Mer)
Structure
-C-C-
II
HH
Figure Q2. Repeating mer structure for polyethylene.
10,000
18,000
17,000
15,000
9,000
4,000
HH
TT
Mean Molecular Weight of
Chains (g/mol)
3,000
6,000
9,000
12,000
15,000
18,000
Table Q2. Analysis of polyethylene sample.
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