Identification from spectra (10) Answer

IB Chemistry: Identification from spectra (10) Answer

Answer to Identification from spectra: Question 10.ElementAmount / molSimplest ratioCarbon70.56/12.01 = 5.884Hydrogen5.93 / 1.01 = 5.878Oxygen23.51 / 16.00 = 1.471b) The M+ peak at m/z = 136 is evidence that the molar mass of compound J is 136 g mol-1 and hence its molecular formula is twice its empirical formula, i.e. C8H8O2. The fragment at m/z = 91 is due to loss of –CO2H leaving C7H7+ and the fragment at m/z =...


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