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| Question | Answer |
| Describe how mass spectroscopy works | The molecules in the sample are bombarded with electrons and a molecular ion, M⁺, is formed when the bombarding electrons remove an electron from the molecule. |
| Given the mass spectrum of a compound, how can the relative molecular mass be found? | Look at the molecular ion peak (the M peak). This is the peak with the highest mass/charge ratio, ignoring any M+1 peak. This is the molecular mass of the compound. |
| Complete the sentences: The bombarding electrons make some of the molecular ions break up into _____________. The fragments that are ions show up on the _______ __________, making a __________________ pattern. | The bombarding electrons make some of the molecular ions break up into FRAGMENTS The fragments that are ions show up on the MASS SPECTRUM, making a FRAGMENTATION pattern. |
| Describe the fragmentation of CH₃CH₂CH₃⁺ |
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| Draw the fragments that are produced from CH₃COCH₃ |
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| Draw the fragments that are produced from CH₃CH₂COOH |
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