Today: Brief Review of Mass Spectroscopy Discussion/Review of H-NMR, CMR Next time (our last lab lecture): Your questions Final Exam at 2:10 pm in your Lab! Exam covers the material of the second half of the semester(only): “Unknowns”.
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Weights of common fragments or neutral losses
M+ = 122
This is the mass spectrum for which compound?
Number of signals
Number of different types of protons
Type of environment for protons
Ratios of numbers of protons
Splitting of Signals
Information about neighboring protons
Solvent peaks …..
How many types of C ?Indicated by how many signals there are in the spectra (solvent peaks ….)
What types of C ?Indicated by the chemical shift of each signal