100 Salicylic Acid (Starting Materjal) 5/19/2020 90 85 80 75 70 65 60 55 30 15 10 5- 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) %Transmittance 2362.62 1850.03 1780.89 1682.12 1604.38 1482.23 1455.63 1362.22 1284.74 1240.97 1217.61 1181.11 1134.59 1084.95 1038.07 1062.62 1011.79 990.80 970.04 915.08 890.07 866.84- 839.28 802.78 790.03 753.09 703.44 666.49 643.84 597.62 560.82_ 542.25 514.87

100 Salicylic Acid (Starting Materjal) 5/19/2020 90 85 80 75 70 65 60 55 30 15 10 5- 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) %Transmittance 2362.62 1850.03 1780.89 1682.12 1604.38 1482.23 1455.63 1362.22 1284.74 1240.97 1217.61 1181.11 1134.59 1084.95 1038.07 1062.62 1011.79 990.80 970.04 915.08 890.07 866.84- 839.28 802.78 790.03 753.09 703.44 666.49 643.84 597.62 560.82_ 542.25 514.87

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter25: Instruments For Optical Spectrometry

Section: Chapter Questions

Problem 25.20QAP

See similar textbooks

Similar questions

4000 3500 3000 2500 Wavenumbers (cm-1) 2000 20 1500 1000 500 1705.32 1354.36 1135.21 1476.83 997.91 2969.16 %Transmittance 1274.53 832.71 1427.75 953.40 553.28 790.43 1218.83 1585.98 894.05 671.73 780.29 463.73 100 C
Transmittance (%) 100% 75% 50% 25% 0% 4000 3500 3000 OH 2500 2000 Spectrum 3B 1750 حسيمة 1500 Wavenumber (cm-¹) 1250 .OH 1000 OH 750 500
A 600 MHz NMR has a signal to noise ratio of 1000 for a proton standard. The 400 MHz NMR has a signal to noise ratio of 200 for a proton standard. If it takes 20 minutes to get an acceptable signal to noise ratio for a sample on the 600 MHz NMR, how long will it take you to achieve the same signal to noise ratio on the 400 MHz NMR?
3500 3000 2500 Wavenumber cm-1 2000 1500 1000 500 3920.67 3082.32 2336.05 2235.94 1699.33 1655.52 1631.23 1407.26 1255.15 1189.54 1103.98 998.71 811.98 471.79 60 Transmittance [%] 80 70 90 fundamny BRUKER 100
Suppose a student is preparing a set of standard solutions for use in a spectrophotometric study. If percent transmittance, %T, were measured in the standard solutions before the color had a chance to fully develop, the measured value would be compared with solutions that have allowed the color to fully develop.
13 C,H120 MICRONS 9 10 13 14 15 16 100 70 60 20 1000 800 600 400 1400 WAVENUMBERSS (CM) 4000 3600 3200 2800 2400 2000 1800 1600 1200 10 % TRANSMITTANCE
Transmittance (%) Transmittance (%) 100 50 4000 100 4000 3000 2000 1500 Wavenumber(cm¹) 1500 Wavenumber(cm¹) 1000 1000 500
You will check the outcome of reaction via infra-red spectroscopy: what are the diagnostic functional group peaks for the following compounds? You should also indicate the stretching motions responsible for absorbance. Dilantin benzil (unreacted starting material) Urea (unreacted starting material)
What is the significance of the max of a spectrum? What are the other uses of the spectrophotometer?
OA B. OC D. CE. Compound G is an Aldehyde Compound H is a Carboxylic acid Compound is an alcohol A Compound B is a ketone Compound is an Adehyde A Compound B is a Ketone B Compound B is an Aldehyde Compound is a Ketone Compound is an Alcohol Compound B is a Carboxylic acid
QUESTION 5 The IR, 'H NMR and 1°C NMR spectra of compound P are shown below. The molecular formula for compound P is CsH;NO2. Identify three (3) important absorption peaks on the IR spectrum and indicate the bond and wavenumber associated with each peak. Elucidate the structure of compound P and assign each peak in the 'H and 13C NMR spectra. (Hint: The compound consists of more than one functional group). а. b.
Lrdocaine USP (ATR) 95- 90 85 80 75 70 65 60 55 50 45 Lidocaine 40 4000 3500 3000 2500 2000 1500 1000 Wavenumbers (cm-1) %Transmittance IZ 3243.36 3021.30 2968.47 2921.13 2799.39 1661.66 1593.98 1491.43, 1449.061 422.12,384.681371.62 1291.03264.55 1206.99 1165.931119.56 1091.78072.77. 1034.33 970.79986.39 917.91, 885.23 763.76 703.94 615.01599.90