1. Unknown code ________

2. Molecular formula ___C5H10O_______

3. Calculate U __________

4. List the important (diagnostic) peaks from the IR spectrum below according to the region given. List the cm-1 and the bond that corresponds to each peak.

5. List any important (diagnostic) peaks that are absent from the IR spectrum.

6. List any classes of compounds that fit the data (i.e., aldehyde, alcohol, ketone).

7. Propose a structure that fits the data. Are any structural isomers available? Draw at least one additional structural isomer.

8. Attach the IR spectrum with the peaks labeled to this sheet.