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
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- Which of the following statements about the mass spectrum of CH3Br is correct? A.) presents two peaks of intensity 3: 1 with m / z equal to 94 and 96 b.) presents two peaks of equal intensity with m / z equal to 94 and 96 C.) presents a single peak of the molecular ion with m / z of 44 D.) has a single peak of the molecular ion with m / z of 95arrow_forwardShow how the compounds with the molecular formulas C6H9N and C5H5NO can be distinguished by the m/z ratio of their molecular ions in high-resolution mass spectrometry.arrow_forwardDetermine the isotopic peak scheme for [ReCl]+ fragment in the mass spectrum? 185Re: %37 ; 187Re: %63; 35Cl: %76; 37Cl: %24arrow_forward
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- Which of the following statements is incorrect? 1.)A conventional mass spectrometer does not employ a spectrophotometric detector. 2.)Conventional mass spectrometry does not always require high purity samples. 3.)A mass spectrum shows no signals due to uncharged species. 4.)A conventional mass spectrometer uses high energy UV radiation.arrow_forwardAfter creating her standard curve for absorption versus the concentration (M) of FD&C Red 40, a student found that her best fit linear line for FD&C Red 40 was y = 2,681x + -0.002. Her Kool-Aid sample had an absorbance of 0.337. If 0.55 grams of Kool-Aid powder was used to prepare an 8-fl oz cup of her assigned flavor, what is the percent by mass of FD&C Red 40 in her 8-fl oz cup?arrow_forwardWhich of the following statements regarding mass spectrometry is incorrect? a. A compound whose molecules contain just one bromine atom shows two molecular ion peaks of similar intensity, one at +1 and one at -1 of the average m/z value b. Molecular ion peaks always have even-numbered values of m/z c. Only cations can be detected by a normal mass spectrometer d. In a normal mass spectrometer, electron impact causes a molecule to lose an electron and become a molecular radical cation which decomposes into fragment cations and radicalsarrow_forward
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