Identification from spectra (3) Answer

IB Chemistry: Identification from spectra (3) Answer

Answer to Identification from spectra: Question 3ElementAmount / molSimplest ratioCarbon66.61/12.01 = 5.554Hydrogen11.20 / 1.01 = 11.18Oxygen22.19 / 16.00 = 1.391b) The M+ peak at m/z = 72 is evidence that the molar mass of compound C is 72 g mol-1 and hence its molecular formula is the same as its empirical formula, C4H8O. The fragment at m/z = 57 is due to loss of –CH3 leaving C3H5O+ and the fragment at m/z = 43...

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