CHEM 311 Midterm: CHEM 311 Midterm Exam Fall 2008
Document Summary
Multiple choice questions are worth 4 pts each. Short answer questions are worth 8 pts each. * transitions are lower in energy than * transitions. A conjugated systems of double bonds in a molecular shifts the a absorption maxima to higher wavelengths. * transitions are higher in energy than * transitions. Fourier transform is a mathematical function used to convert from the time domain to the frequency domain used in many modern analytical techniques, such as ir and nmr all of the above. The function of the michaelson interferometer in an ft-ir instrument is to perform the ft increase the sensitivity speed up the acquisition time modulate the interference patterns of the light beam from the source. Ft-ir is used mostly for quantification of organic molecules functional group analysis of organic molecules heavy metal analysis molecular weight determination. Which of the following techniques is least useful for structural determination of small organics.
