O -7.260 Full spectrum of a compound with molecular formula C9H17NO2. The IR spectrum shows strong bands at 1670 cm¹ and 1650 cm-¹. Hint: this molecule contains a Weinreb amide (check Google/Wikipedia) What is this signal and how can one explain its intensity? 7.5 7.0 6.5 6.0 5.5 5.0 4.692 4.663 0.49 0.49€ 4.5 4.0 -3.644 1.54 3.5 - 3.145 1.51- 3.0 2.392 2.380 2.367 2.047 2.034 -2.022 1.776 -1.763 1.750 11 1.00- 2.5 1.00 1.03 1.50€ 2.0 P+4 1.737 1.725 -1.688 1.5

O -7.260 Full spectrum of a compound with molecular formula C9H17NO2. The IR spectrum shows strong bands at 1670 cm¹ and 1650 cm-¹. Hint: this molecule contains a Weinreb amide (check Google/Wikipedia) What is this signal and how can one explain its intensity? 7.5 7.0 6.5 6.0 5.5 5.0 4.692 4.663 0.49 0.49€ 4.5 4.0 -3.644 1.54 3.5 - 3.145 1.51- 3.0 2.392 2.380 2.367 2.047 2.034 -2.022 1.776 -1.763 1.750 11 1.00- 2.5 1.00 1.03 1.50€ 2.0 P+4 1.737 1.725 -1.688 1.5

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

Problem 14.27P: Following is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122....

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Watch videos (LINKS) on page 2 and answer questions One infrared spectra (1) is given below. (a) Analyze the spectra and tabulate important bands. (b) Circle the possible molecular structure corresponding to the given spectra. Spectra A: 4000 2700 cm ¹ 2700- 2000 cm ¹ 2000 1600 cm 1600 - 400 cm ¹ 2.5 100 80 Region 60 40 20 0 OL 4000 (a) COMPOUNDS A OH 3500 3 -1 3000 B Absorption, cm -1 3.5 4 2500 4.5 SPECTRA 1 CH, O CH, C C CH, H H NO H wavelength (um) 5 5,5 6 2000 1800 1600 wavenumber (cm) wavelength (um) C Functional group CIC C-OH CH, 7 8 1400 1200 D 9 10 n 1000 CH₂CH₂OH - 11 Base Value 12 13 14 15 16 800 600 E Jun CH₂-C-N
Please try to solve it in 30 minute
1. what is the conclusion of this experiment Spectrophotometric of a Cobalt Chloride Solution Analysis Table 1 Absorption Spectrum of Cobalt Chloride Using a Spectrophotometer Wavelength Absorbance 400 410 420 430 440 450 460 370 480 490 500 510 520 530 540 550 560 570 580 590 600 610 620 630 640 650 660 670 680 690 700 0.036 0.044 0.063 0.095 0.147 0.215 0.284 0.329 0.362 0.402 0.450 0.479 0.464 0.398 0.314 0.216 0.142 0.087 0.054 0.041 0.036 0.036 0.034 0.028 0.030 0.023 0.023 0.023 0.014 0.014 0.011 Test Tube Number Cobalt Chloride Concentration (mol/mL) Absorbance at 510 nm 1 0.000 0.000 2 0.009 0.042 3 0.018 0.92 4 0.027 0.139 5 6 0.036 0.045 0.190 0.236 7 (Unknown) 0.151
2 What can be described if a sample analyzed by AAS shows the following results:
Q1 (a) Explain how the peaks in Infra-Red spectroscopy are generated and what information the peaks can provide about the molecule analysed.(250 words limit) 25% (b) Explain how interaction of Ultra-Violet / Visible light with a molecule produces an absorbance and hence a peak, indicating what parts of a molecule can absorb this radiation. (250 words limit) (25%)
I need the answer as soon as possible
7) The correct structure that corresponds to the spectroscopic data given below is [IR 2720, 1710 1 point cm*1. 1H NMR 9.80(s, 1H), 7.50(dd, J = 8,0Hz, 2Hz, 1H), 7.40(d, J = 2.0Hz, 1H), 6.90(d, J = 8.0Hz, 1H), 3.90(s, 3H), 3.80(s, 3H)] COOH OMe Me CHO OMe OMe CHO OMe OMe COOH OMe Me
A compound with molecularformula C,H,,0 gives the following IR spectrum. 100 1650 1720 4000 36bo adoo 2500 2000 1500 1do0 400 Wavenumber (cm-1) % Transmittance
interpret/identify the spectroscopy peaks and its charecteristics (ex. C=O, 4H)
Predict the structural formula for compound containing (C, H, N) having spectra data as shown below, explain : Rel. Intensity 100 Relative Transmittance M.wt = 121 80- %M+1= 9,16 60 40 20 0.0 0.0 0.8- 0.6 0.4 0.2 Number of nitrogen = 1 اماند ار کر X71 الرمايي ~H. CH₂CH 4 40 mtd 3000 80 m/z 2000 Wavenumber (cm-1) 5 CH₂ 4 2 S 18 120 GHz 3 q 8 (ppm) 1000 2 160 500 CH₂ D ~Asn
From this mass spectroscopy, determine the molecule correspond? Masse molaire (g/mol) Abundance 70000] 60000 50000 40000 30000 20000 10000 m/z--> 0 38 50 Bromo-2,4- dinitrobenzène 75 247 g/mol 107 100 154 KSCN à 50 % 97,18 (d=1,34) (12.703 min) 170 218 246 150 200 250 Bu4NBr 322,37 g/mol 3 03:23 36382 300 350 400 2,4- dinitrophényl thiocyanate 225 g/mol 449473 5833 TITIITT 450 500 550 KBr 119 g/mol
Identify as many peaks as possible. This is the IR Spectroscopy of an unknown solid in Nujol.