Principles of Instrumental Analysis, 6th Edition
6th Edition
ISBN: 9788131525579
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cenage Learning
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Chapter 21, Problem 21.6QAP
Interpretation Introduction
Interpretation:
The comparison of EELS to conventional IR and Raman spectroscopy, the advantage and limitation of EELS.
Concept introduction:
In an electron energy-loss spectroscopy (EELS), a low energy beam of electron strikes the surface of the sample and excites vibrations. In infrared spectroscopy, the measurement of transmitted infrared radiations is done after they passed through the sample, and in Raman spectroscopy, the scattered radiations in the visible region are measured after they are passed through the sample.
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4. (2 pts) Draw the structure of the major component of the Limonene isolated. Explain how
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5. (2 pts) Draw the fragment corresponding to the base peak in the Mass spectrum of
Limonene.
6. (1 pts) Predict the 1H NMR spectral data of R-Limonene.
Proton NMR: 5.3 pon multiplet (H Ring
Part VI.
Ca H 10 O is the molecular formula of compound Tom and gives the
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13C
Signals summarized
C1
C2
C3
C4
C5
C6
C7
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23.5
27.0
33.0
35.8
127
162
205
DEPT-90
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DEPT-135
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2. Using the following data to calculate the value of AvapH o of water at 298K. AvapH o of water at
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Chapter 21 Solutions
Principles of Instrumental Analysis, 6th Edition
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