1. Given the IR and MS spectra, identify the following unknown with molecular formula (C5H10).0.90.750.60.45308929753000.16482000.WAVENUMBER (cm-1)8851000.100.-80.60.-40.-20.0.0.1515.d. Propose a structure consistent with this information.29c. To what do MS fragments at m/z = 70, 55, and 29 correspond?30.m/za. Calculate the hydrogen deficiency index for the molecule (show your work).45.b. To what do the IR absorptions at 3089, 2975, 1648, and 885 cm³¹ correspond?60.7075.

a. The hydrogen deficiency index = C - (H/2) + (N/2) + 1 = 5 - 10/2 + 0 + 1 = 5 -5 + 1 = 1Where, C =…

1. Given the IR and MS spectra, identify the following unknown with molecular formula (C5H10). 0.9 1648 3089 IN LI 15 2975 30. 45. 3000. 2000. WAVENUMBER (cm-1) 0.75 0.6 0.45 885 100.- 1000. 80.- 60.- 40.- 20.- 0. 0. 15. m/z a. Calculate the hydrogen deficiency index for the molecule (show your work). 60. 70 75.

1. Given the IR and MS spectra, identify the following unknown with molecular formula (C5H10). 0.9 1648 3089 IN LI 15 2975 30. 45. 3000. 2000. WAVENUMBER (cm-1) 0.75 0.6 0.45 885 100.- 1000. 80.- 60.- 40.- 20.- 0. 0. 15. m/z a. Calculate the hydrogen deficiency index for the molecule (show your work). 60. 70 75.

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

Chapter20: Molecular Mass Spectrometry

Section: Chapter Questions

Problem 20.11QAP

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Cc.58.
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