Concept explainers
Which of the following fragments produced in a mass spectrometer will be accelerated through the analyzer tube?
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Organic Chemistry, Books a la Carte Edition (8th Edition)
- How can you distinguish between following APIS in Mass Spec? Draw possible Mass spectra of ALL APIS and identify each peak H O H. H c-c CH,CH,CH,OH CH3 CH;CH,-C-C-CH CH3 H3C A H3C OH D но CH;CH CH2-C-C-H CH3 B.arrow_forwardWhich of the following compounds appears in the mass spectrum to have a baseline peak at m/z=43, indicating the reason OH B OH OH C Darrow_forwardivarrow_forward
- Please refer to the image belowarrow_forwardKk170.arrow_forwardThe molecular ions of both C5H10S and C6H14O appear at m/z 102 in low-resolution mass spectrometry. Show how determination of the correct molecular formula can be made from the appearance and relative intensity of the M + 2 peak of each compound.arrow_forward
- Match each structure to its mass spectrum.arrow_forwardQ.1. Predict the relative intensity of the M, M+1, and M+2 peaks for a low resolution mass spectrum of a compound with molecular formula, C6H13Br. The natural abundances of the select isotopes are given below. 35 Cl: 75.8% 79Br: 50.5% 12C: 98.89% 37Cl: 24.2% (The ratio is almost 3:1) 81Br: 49.5% (The ratio is almost 1:1) 13C: 1.11%arrow_forwardThe picture shows the given compound that was analyzed through mass spectra where notable peaks were observed. What are the structure of the fragments in the following M/Z. M/Z = 91, M/Z = 43, M/Z=147arrow_forward
- Write molecular formulas for compounds that show the following molecular ions in their high-resolution mass spectra, assuming that C, H, N, and O might be present. The exact atomic masses are: 1.007 83 (1H), 12.000 00 (12C), 14.003 07 (14N), 15.994 91 (16O). (a) M+=98.0844 (b) M+=123.0320arrow_forwardHalogenated compounds are particularly easy to identify by their mass spectra because both chlorine and bromine occur naturally as mixtures of two abundant isotopes. Recall that chlorine occurs as 35Cl (75.8%) and 37Cl (24.2%); and bromine occurs as 79Br (50.7%) and 81Br (49.3%). At what masses do the molecular ions occur for the following formulas? What are the relative percentages of each molecular ion? (a) Bromomethane, CH3Br (b) 1-Chlorohexane, C6H13Clarrow_forwardAssign molecules A, E, G, and H to the correct mass spectrum and provide the structure of thebase peak.arrow_forward
- Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning