Below is the mass spectrum as well as the tabulated mass spectrum data foran unknown compound. Propose a molecular formula for this compound.Relative Abundance10088960-402010O C4H602O C5H10020O C4H8NOO C4H7P304050miz60708090m/z1526272829383941RELATIVE HEIGHT()4.81.310.51.31.91.2MASS SPECTRUM DATAm/z4243446.311.958718687RELATIVE HEIGHT (N)4.0100 (base peak)2.310.311.020.9 (M)1.2

Mass spectrum peaks: Molecular ion peak at m/z 86 Base peak at 43.

Below is the mass spectrum as well as the tabulated mass spectrum data for an unknown compound. Propose a molecular formula for this compound. Relative Abundance 100 80 60 40 20 0- 10 20 O C4H602 O C5H100 O C4H8NO O C4H7P 30 50 m/z 60 70 80 90 m/z 15 26 27 28 29 38 39 41 MASS SPECTRUM DATA m/z 42 43 44 RELATIVE HEIGHT() 4.8 1.3 10.5 1.3 1.9 1.2 6.3 11.9 58 71 86 87 RELATIVE HEIGHT (N) 4.0 100 (base peak) 2.3 10.3 11.0 20.9 (M) 1.2

Below is the mass spectrum as well as the tabulated mass spectrum data for an unknown compound. Propose a molecular formula for this compound. Relative Abundance 100 80 60 40 20 0- 10 20 O C4H602 O C5H100 O C4H8NO O C4H7P 30 50 m/z 60 70 80 90 m/z 15 26 27 28 29 38 39 41 MASS SPECTRUM DATA m/z 42 43 44 RELATIVE HEIGHT() 4.8 1.3 10.5 1.3 1.9 1.2 6.3 11.9 58 71 86 87 RELATIVE HEIGHT (N) 4.0 100 (base peak) 2.3 10.3 11.0 20.9 (M) 1.2

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL2: Mass Spectrometry

Section: Chapter Questions

Problem 27CTQ

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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

Below is the mass spectrum as well as the tabulated mass spectrum data for
an unknown compound. Propose a molecular formula for this compound.
Relative Abundance
100
889
60-
40
20
10
O C4H602
O C5H100
20
O C4H8NO
O C4H7P
30
40
50
miz
60
70
80
90
m/z
15
26
27
28
29
38
39
41
RELATIVE HEIGHT()
4.8
1.3
10.5
1.3
1.9
1.2
MASS SPECTRUM DATA
m/z
42
43
44
6.3
11.9
58
71
86
87
RELATIVE HEIGHT (N)
4.0
100 (base peak)
2.3
10.3
11.0
20.9 (M)
1.2

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