12. Polychlorinated biphenyls (PCBS) arc organic mixtures of chlorinated compounds that were once widely used as dielectric and coolant fluids in electrical apparatus. They are now considered to be persistent organic pollutants Figure 1 shows an example of PCB : 2,2',4,4'-tetrachlorobiphenyl(PCB-47). CI Figure 1 What is the m/z value of the most abundant molecular ion peak in a mass spectrum of PCB-47? [Chlorine exists as two isotopes, 3Cl and 37CI ; relative atomic mass : C,12.0; H,1.0; CL 35.5] A. 290 В. 292 С. 294 D. 298
12. Polychlorinated biphenyls (PCBS) arc organic mixtures of chlorinated compounds that were once widely used as dielectric and coolant fluids in electrical apparatus. They are now considered to be persistent organic pollutants Figure 1 shows an example of PCB : 2,2',4,4'-tetrachlorobiphenyl(PCB-47). CI Figure 1 What is the m/z value of the most abundant molecular ion peak in a mass spectrum of PCB-47? [Chlorine exists as two isotopes, 3Cl and 37CI ; relative atomic mass : C,12.0; H,1.0; CL 35.5] A. 290 В. 292 С. 294 D. 298
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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