Problem 2 IR Spectrum (liquid film) 2984 1741 1243 4000 3000 2000 1600 1200 800 0.0 V (cm) 100 Mass Spectrum 43 0.5 80 60 UV spectrum 1.0 solvent : ethanol 40 29 M+ = 88 15.4 mg / 10 mls path length : 1.00 cm 20 1.5 40 80 120 160 200 240 280 200 250 300 350 m/e 1 (nm) 13C NMR Spectrum (50.0 MHz, CDCI, solution) proton decoupled solvent 200 160 120 80 40 8 (ppm) 1H NMR Spectrum (200 MHz, CDCI, solution) TMS 1 8 (ppm) 10 9. 8 7 4 2 LO CO % of base peak
Problem 2 IR Spectrum (liquid film) 2984 1741 1243 4000 3000 2000 1600 1200 800 0.0 V (cm) 100 Mass Spectrum 43 0.5 80 60 UV spectrum 1.0 solvent : ethanol 40 29 M+ = 88 15.4 mg / 10 mls path length : 1.00 cm 20 1.5 40 80 120 160 200 240 280 200 250 300 350 m/e 1 (nm) 13C NMR Spectrum (50.0 MHz, CDCI, solution) proton decoupled solvent 200 160 120 80 40 8 (ppm) 1H NMR Spectrum (200 MHz, CDCI, solution) TMS 1 8 (ppm) 10 9. 8 7 4 2 LO CO % of base peak
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Problem 2
IR Spectrum
(liquid film)
2984
1741
1243
4000
3000
2000
1600
1200
800
0.0
V (cm1)
100
Mass Spectrum
43
0.5
80
60
UV spectrum
1.0
solvent : ethanol
15.4 mg / 10 mls
path length : 1.00 cm
40
29
M+' = 88
20
1.5
40
80
120
160
200
240
280
200
250
300
350
m/e
2 (nm)
13C NMR Spectrum
(50.0 MHz, CDCI, solution)
solvent
proton decoupled
200
160
120
80
40
d (ppm)
1H NMR Spectrum
(200 MHz, CDCI, solution)
TMS
1
8 (ppm)
10
8.
6.
5
4
% of base peak
LO
Transcribed Image Text:Unknown Spectroscopy Practice Problems: Problem #2
What hydrocarbon (hydrogen and carbon only) formula would you use to start this
problem? How many degrees of unsaturation does it have?
Looking at the IR, what characteristic bond is present?
How would you revise your molecular formula and degrees of unsaturation based on the
IR spectrum?
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