.Answer the following questions giving as much detail of your reasoning as possible: 1. Why is important the population distribution in spectroscopy in general? Use the formula below to answer: Nupper/Niower e(-AE /kT) where k = 1.381 x 1023 J K1 Also include a simple scheme (or 3 schemes) that applies to lIR, UV-vis and NMR spectroscopy

.Answer the following questions giving as much detail of your reasoning as possible: 1. Why is important the population distribution in spectroscopy in general? Use the formula below to answer: Nupper/Niower e(-AE /kT) where k = 1.381 x 1023 J K1 Also include a simple scheme (or 3 schemes) that applies to lIR, UV-vis and NMR spectroscopy

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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Please refer to the images as much as you need to. For the following hydrocarbons, pick out 5 wavenumbers for each hydrocarbon, and give it its probable assignment for its structure. You may find this link useful: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/analytical-chemistry/photometry-and-reflectometry/ir-spectrum-table o-xylene (cm-1) : 985.76, 1021.06, 1052.51, 1119.30, 1383.43, 1465.62, 1495.11, 1604.66, 2859.82, 2874.76, 2922.19, 2937.08, 2968.08, 3016.57, 3049.67, 3063.02, 3105.51 m-xylene (cm-1) : 876.16, 904.28, 1039.26, 1094.05, 1169.56, 1376.70, 1397.17, 1458.12, 1491.51, 1538.93, 1557.96, 1591.83, 1612.18, 1652.69, 2730.72, 2863.59, 2920.44, 2944.72, 3015.77, 3104.24 p-xylene (cm-1) :1023.01, 1042.16, 1102.92, 1119.19, 1219.51, 1378.51, 1455.91, 1515.82, 1557.92, 1631.57, 1889.80, 2732.29, 2868.22, 2921.93, 2976.07, 2999.25, 3018.79, 3044.59, 3093.20, 3133.55, 3134.26
2 PPM Calculate the coupling constant (J) for the multiplets reported in the 'H-NMR expansion above, knowing that the corresponding spectrum was recorded at 400 MHz. Report your result with four significant figures. 2.444 2.410 2.376 2.342 2.005 1 1.244 1.210 1.176 3.012
Draw a picture and determine the point group for EACH of the possible structural arrangements of PFnBr(5-n) for n = 0 to 5. I.e. start with PBr5 and end with PF5. Assuming a static structure, indicate the number and relative intensities of the signals that you would expect to see in the 19F NMR spectrum of each molecule. %3D
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