10.3 For a linear molecule of polyethylene of molar mass 119,980 g mol-¹, calculate: (a) the contour length of the molecule, (b) the end-to-end distance in the fully-extended molecule, and (c) the root-mean-square end-to-end distance according to the valence angle model. In the calculations, end groups can be neglected and it may be assumed that the C-C bonds are of length 0.154 nm and that the valence angles are 109.5°. Comment upon the values obtained. Indicate, giving your reasoning, which of the very large number of possible conformations of the molecule is the most stable.
10.3 For a linear molecule of polyethylene of molar mass 119,980 g mol-¹, calculate: (a) the contour length of the molecule, (b) the end-to-end distance in the fully-extended molecule, and (c) the root-mean-square end-to-end distance according to the valence angle model. In the calculations, end groups can be neglected and it may be assumed that the C-C bonds are of length 0.154 nm and that the valence angles are 109.5°. Comment upon the values obtained. Indicate, giving your reasoning, which of the very large number of possible conformations of the molecule is the most stable.
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter7: Bonding In Organic Molecules
Section: Chapter Questions
Problem 29P: Compare the bonding in formic acid (HCOOH) with that in its conjugate base formate ion (HCOO). Each...
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