An organic chloro-compound has the molecular formula: C₁4H22Cl2. Give the ratio of the% (M+2)* to M* peak intensity for the aboye compound to two decimal places. The masses in Daltons of selected isotopes and their abundances are given in the table below: Isotope abundance and mass data Element H C N 0 F Si P S CI Br I M Isotope H-1 C-12 N-14 0-16 F-19 Si-28 P-31 S-32 Cl-35 Br-79 I-127 ANS (M+2)/M* (%) - Mass (Da) Isotope H-2 1.00783 12.0000 C-13 14.0031 N-15 15.9949 0-17 18.9984 F-20 27.9769 Si-29 30.9738 P-33 (M+1)* Abundance 0.015 1.08 0.37 0.04 0 5.1 0 31.9721 S-33 34.9689 CI-36 78.9183 Br-80 126.9045 I-128 (report the % to 2 decimal places) 0.8 2000 (M+2)+ Isotope Abundance H-3 0 C-14 0 N-16 0-18 F-21 Si-30 P-34 S-34 CI-37 Br-81 I-129 0 0.2 0 3.4 0 4.40 32.5 98.0 0

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
Chapter15: Molecular Luminescence Spectrometry
Section: Chapter Questions
Problem 15.6QAP
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An organic chloro-compound has the molecular formula: C₁4H22Cl2. Give the ratio of the% (M+2)* to M* peak intensity for the above compound to two
decimal places.
The masses in Daltons of selected isotopes and their abundances are given in the table below:
Isotope abundance and mass data
Element
Mass
(Da)
1.00783
12.0000
14.0031
15.9949
18.9984
27.9769
30.9738
31.9721
34.9689
78.9183
126.9045
H
C
N
F
Si
P
S
CI
Br
I
Mt
Isotope
H-1
C-12
N-14
0-16
F-19
Si-28
P-31
S-32
Cl-35
Br-79
I-127
ANS - (M+2)/M* (%) =
(M+1)
Isotope
H-2
C-13
N-15
0-17
F-20
Si-29
P-33
S-33
CL-36
Br-80
I-128
Abundance
0.015
1.08
0.37
0.04
0
5.1
0
0.8
0
0
0
(report the % to 2 decimal places)
(M+2)*
Isotope Abundance
H-3
0
C-14
0
N-16
0
O-18
0.2
F-21
0
Si-30
3.4
P-34
0
S-34
4.40
CI-37
32.5
Br-81
98.0
I-129
0
Transcribed Image Text:An organic chloro-compound has the molecular formula: C₁4H22Cl2. Give the ratio of the% (M+2)* to M* peak intensity for the above compound to two decimal places. The masses in Daltons of selected isotopes and their abundances are given in the table below: Isotope abundance and mass data Element Mass (Da) 1.00783 12.0000 14.0031 15.9949 18.9984 27.9769 30.9738 31.9721 34.9689 78.9183 126.9045 H C N F Si P S CI Br I Mt Isotope H-1 C-12 N-14 0-16 F-19 Si-28 P-31 S-32 Cl-35 Br-79 I-127 ANS - (M+2)/M* (%) = (M+1) Isotope H-2 C-13 N-15 0-17 F-20 Si-29 P-33 S-33 CL-36 Br-80 I-128 Abundance 0.015 1.08 0.37 0.04 0 5.1 0 0.8 0 0 0 (report the % to 2 decimal places) (M+2)* Isotope Abundance H-3 0 C-14 0 N-16 0 O-18 0.2 F-21 0 Si-30 3.4 P-34 0 S-34 4.40 CI-37 32.5 Br-81 98.0 I-129 0
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