Relative Intensity 100 80- 40 20 0 25 50 75 m/z 100 125 m 150

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
Chapter31: Thermal Methods
Section: Chapter Questions
Problem 31.11QAP: Describe the difference between power-compensated, heat-flux, and modulated DSC instruments.
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Calculate the IHD then identify the important peaks in the following MS spectral data and draw the structure of the important peaks in the following MS spectral data.

Typewritten please because I have a poor eyesight that's why I'm having a hard time understanding handwritten answer especially cursive. Thank you for understanding.

Relative Intensity
100
80-
40
20
0
25
50
75
m/z
100
125
m
150
Transcribed Image Text:Relative Intensity 100 80- 40 20 0 25 50 75 m/z 100 125 m 150
18.0
26.0
27.0
28.0
29.0
37.0
38.0
39.0
49.0
50.0
51.0
52.0
53.0
54.0
55.0
61.0
62.0
63.0
64.0
65.0
65.5
74.0
75.0
76.0
77.0
78.0
79.0
80.0
86.0
87.0
88.0
89.0
MF: C₂H₂O
1.6
3.1
7.3
2.6
4.4
2.2
3.8
12.1
1.2
11.4
26.9
6.8
50.6
4.6
5.6
1.8
5.4
11.1
2.0
6.3
1.3
4.5
4.2
4.9
57.1
32.1
33.0
2.5
1.8
2.2
3.1
10.0
90.0
91.0
101.0
102.0
103.0
104.0
105.0
106.0
107.0
108.0
113.0
114.0
115.0
116.0
122.0
130.0
131.0
132.0
133.0
1.2
1.6
1.1
10.3
42.9
30.6
14.1
4.1
1.6
1.4
4.1
20.6
7
3/5
2.3
1.8
95.6
100.0
10.3
..
Transcribed Image Text:18.0 26.0 27.0 28.0 29.0 37.0 38.0 39.0 49.0 50.0 51.0 52.0 53.0 54.0 55.0 61.0 62.0 63.0 64.0 65.0 65.5 74.0 75.0 76.0 77.0 78.0 79.0 80.0 86.0 87.0 88.0 89.0 MF: C₂H₂O 1.6 3.1 7.3 2.6 4.4 2.2 3.8 12.1 1.2 11.4 26.9 6.8 50.6 4.6 5.6 1.8 5.4 11.1 2.0 6.3 1.3 4.5 4.2 4.9 57.1 32.1 33.0 2.5 1.8 2.2 3.1 10.0 90.0 91.0 101.0 102.0 103.0 104.0 105.0 106.0 107.0 108.0 113.0 114.0 115.0 116.0 122.0 130.0 131.0 132.0 133.0 1.2 1.6 1.1 10.3 42.9 30.6 14.1 4.1 1.6 1.4 4.1 20.6 7 3/5 2.3 1.8 95.6 100.0 10.3 ..
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