Modern Analytical Techniques 0.0 / 5 ? ChemistrySpectroscopyASOCR Created by: Jammydodger654Created on: 01-04-14 17:47 What type of radiation causes bonds in the molecule to vibrate? Infrared radiation 1 of 15 The bonds can vibrate in which two ways? Stretch and bend 2 of 15 The amount of vibration depends on what? The bond strength, bond length and mass of each atom involved 3 of 15 The infrared absorption is measured in what? Wavenumbers 4 of 15 What are 4 uses of infrared spectroscopy? Monitoring the unsaturation of polymers, quality control of perfumes, drug analysis and breathalysers 5 of 15 The infrared spectrum allows us to identify what in a molecule? Functional group 6 of 15 Most organic compounds have an absorption of what wavenumber? 3000/cm 7 of 15 The relative isotopic masses of an element can be found using which instrument? Mass spectrometer 8 of 15 During mass spectrometry, the molecules are converted into ions by which method? Ionisation 9 of 15 The ions are separated according to what ratio? Mass to charge ratio 10 of 15 The ions are deflected by what? The mass to charge ratio determines the amount of deflection Electromagnet 11 of 15 What is the positive ion formed in mass spectrometry when a molecule loses and electron? Molecular ion 12 of 15 What is the process in mass spectrometry that causes a positive ion to split into smaller pieces? Fragmentation 13 of 15 The M+1 peak is due to what particular isotope? Carbon-13 14 of 15 The molecular ion peak is generally furthest to the... Right 15 of 15
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