An unknown substance shows a molecular ion peak at m/z = 170 with a relative intensity of 100. The M + 1 peak has an intensity of 13.2, and the M + 2 peak has an intensity of 1.00. What is the molecular formula of the unknown?

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter14: Mass Spectrometry
Section: Chapter Questions
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An unknown substance shows a molecular ion peak at m/z = 170 with a relative intensity of 100.
The M + 1 peak has an intensity of 13.2, and the M + 2 peak has an intensity of 1.00. What is the
molecular formula of the unknown?
Transcribed Image Text:An unknown substance shows a molecular ion peak at m/z = 170 with a relative intensity of 100. The M + 1 peak has an intensity of 13.2, and the M + 2 peak has an intensity of 1.00. What is the molecular formula of the unknown?
Relative Intensity
100
80
40
20
M'
M'+1
MT + 2
otk
20
10
m/z
112
113
114
30
mm
%6
53 100
7.2
0.9
3.8
0.5
40
50
ball
60
m/z
70
80
90
100 110
Use this mass
spectrum to determine
the molecular formula.
of the molecule that
gives rise to it.
Transcribed Image Text:Relative Intensity 100 80 40 20 M' M'+1 MT + 2 otk 20 10 m/z 112 113 114 30 mm %6 53 100 7.2 0.9 3.8 0.5 40 50 ball 60 m/z 70 80 90 100 110 Use this mass spectrum to determine the molecular formula. of the molecule that gives rise to it.
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