Question

Style Recitation problems may be collected randomly for a grade. Below is a collection of problems to help you improve your understanding and interpretation of infrared spectroscopy 1. Why are wavenumbers, not frequency or wavelength, used as the unit on the x-axis? If the y-axis was given the unit of absorbance instead of transmittance, what visible change would happen to the peaks on the spectrum? 2. Hand-draw a hypothetical IR spectrum of the molecule below. Include all relevant peaks from reference tables 3. In Exp. 5 you will be analyzing the reaction product, sgpentyl acetase, by gas chromatography, NMR spectroscopy, and IR apectroscopy. Look up the stracture of this compound, and the starting material, and explain as ponts of IR spectral evidence as ible to distinguish the magr organic starting material from the product. g88 F3 F5 F7 F8 F9 F1O

Answer 1

32 u] 1530 ,1310 1610 30 D 1530 ubiO 500 2000 15bo 3000 L1000 35b0