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(a) The mass spectrometer in Figure 2.12 has a magnet as one of its components What is the purpose of the magnet?

(b) The atomic weight of Cl is 35.5 amu. However, the mass spectrum of Cl (Figure 2.13) does not show a peak at this mass. Explain.

(c) A mass spectrum of phosphorus (P) atoms shows only asingle peak at a mass of 31.What can you conclude from this observation?

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