Label the base peak and molecular ion peak the mass

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Unformatted text preview: he base peak, and molecular ion peak. The mass of 2-phenylethanol is 122. What is the source of the peak at m/z = 123? (6 pts) OH Base peak → m/z = 91 Molecular ion (M+) m/z = 122 → (M+1) is from the isotopic abundance of 13C ←m/z = 123 2. An example of a UV, IR, and 1H NMR spectrum is shown below. The absorption of EM radiation (photon) by the molecule results in specific signals in each spectrum. Indicate which signals denoted by the arrows, corresponds to the absorptions of the highest and lowest energy photons. (...
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