CHM211H5 Study Guide - Quiz Guide: Molecular Mass, Mass Spectrum, Unified Atomic Mass Unit
Document Summary
The mass spectrum of the compound was plotted via mass spectrometry, then analyzed intricately to discover its identity. The identification is crucial in that it allows the analysis of the chemical and physical components of a compound, which informs about the reactivity and bonding mechanisms, and thus mass spectrometry is an efficient tool. The highest m/z value in the data is 61, thus it is impossible for bromine (79, 81 amu) to exist in the compound. The molecular ion is usually that with the highest m/z value, however, in this case, it exhibits a very low intensity (0. 2), suggesting that the next highest m/z value, 60, could be the molecular ion (intensity of 6. 6). This makes 60 the m+ peak, and 61 the m+1 peak. The chlorine isotope correlates with the m+2 peak, which is not available. Thus, there is no chlorine isotope in the compound.
