I am taking my second semester of organic this summer. We are working on IR Spectroscopy and mass spectrometry in class. Is there anywhere that anyone knows about that may put it all together? Or can anyone maybe give me some tips on how to remember all of the main functional groups? I am having trouble keeping up with aldehydes and ketones when I look at other parts of the print out. I will see a spike at ~1600 so I will know there is a C O double bond but somehow miss the aldehyde or ketone. Any help that you all have would be great.