8. The nominal mass of Cl_Brz is 228 (M"). Calculate the probability for the mess of 236 [(M+8)). Given: Isotope chlorin

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8 The Nominal Mass Of Cl Brz Is 228 M Calculate The Probability For The Mess Of 236 M 8 Given Isotope Chlorin 1 (57.13 KiB) Viewed 95 times

8. The nominal mass of Cl_Brz is 228 (M"). Calculate the probability for the mess of 236 [(M+8)). Given: Isotope chlorine-35 chlorine-37 bromine-79 bromine-81 75.8% Natural abundance 24.2% 49.5% 50.5% A. 0.119 B. 0.093 C. 0.029 D. 0.014 E 0.009 9. Which of the following statements is incorrect? A. In normal phase chromatography, the stationary phase is polar. B. In reversed-phase chromatography, the stationary phase is nonpolar. C. In normal-phase chromatography, the most polar component is eluted last. D. In reversed-phase chromatography, most polar component is eluted last. E. In reversed-phase chromatography, increasing the mobile-phase polarity increases the elution time. 10. Which of the following statements about flame ionization detector (FID) is not true? A. FID measures the ion current in a hydrogen/air flame, B. It is not suitable for water and carbon dioxide. C. It is destructive. D. FID is suitable for the analyses of all organic samples. E. All statements are not true. 11. Which of the following statements is correct? A. Chlorine containing compounds are best analyzed by using an ECD detector. B. Equimolar amount of CH4 and C3Hs should produce the same signals using an FID. C. Mass spectrometry detector (MSD) is nondestructive. D. Electron capture detector (ECD) is sensitive to all functional groups. E. The best carrier gas for a thermal conductivity detector (TCD) is nitrogen.