An ion with the formula C 7 H 10 NO 2 + appears at m/z 140. (a)
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An ion with the formula C7H10NO2+ appears at m/z 140.
(a) Write the formulas of the isotopologues contributing to m/z 141 and predict the intensity at m/z 141 relative to the intensity at m/z 140.
(b) Write the formulas of the three most abundant isotopologues contributing to m/z 142.
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