Answered: 12-15 (a) HC \ H3C c=c CH3 CH3 1660…

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12-15 (a) HC \ H3C c=c CH3 CH3 1660 cm-¹ and 3000- 3100 cm-1 Н Н c=c CH3 CH(CH3)2 1660 cm-1

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter28: High-performance Liquid Chromatography

Section: Chapter Questions

Problem 28.14QAP

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Concept explainers

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.

Question

This is referring to infrared spectroscopy. Why does the first double bond have a weak/non-existent peak while the second double bond has a moderate intensity peak?

12-15
(a)
H3C
H₂C
<=C
CH3
CH3
1660 cm-1
weak or non-existent
and
3000-
3100 cm-¹
310
H
H
c=c
CH3
CH(CH3)2
1660 cm-1
moderate intensity

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