In a mass spectrometer, positive ions are produced when a
Chapter 3, Problem 3.129(choose chapter or problem)
In a mass spectrometer, positive ions are produced when a gaseous mixture is ionized by electron bombardment produced by an electric discharge. When the electricdischarge voltage is low, singly positive ions are produced and the following peaks are observed in the mass spectrum: Mass (u) Relative Intensity 32 0.3743 34 0.0015 40 1.0000 When the electric discharge is increased, still only singly charged ions are produced, but now the peaks observed in the mass spectrum are Mass (u) Relative Intensity 16 0.7500 18 0.0015 40 1.0000 What does the gas mixture consist of, and what is the percent composition by isotope of the mixture?
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