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10. Briefly explain how the 13C-NMR data was used to determine (or confirm your proposed structure. 11. In both of the boxes
Chapter 5: INTEGRATED SPECTROSCOPY PROBLEMS 139 ompound 81 is a liquid (boiling point 85 C) that is commonly used as an apro
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are useful to determine o no. of signals structure. useful to The position of signal s also determine the structure for examp

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