The mass spectrum of pentane (MW=72 g/mol) is given below. Which peak is for molecular ion peak, A or B? A10043 (M-29)CH;CH,CH2CH,CH3MW=725027В2972(М-15)571520406080100m/zRelative abundance

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The mass spectrum of pentane (MW=72 g/mol) is given below. Which peak is for molecular ion peak, A or B

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.10QAP

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Concept explainers

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

The mass spectrum of pentane (MW=72 g/mol) is given below. Which peak is for molecular ion peak, A or B?

A
100
43 (M-29)
CH;CH,CH2CH,CH3
MW=72
50
27
В
29
72
(М-15)
57
15
20
40
60
80
100
m/z
Relative abundance

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