A 4.67 gram sample of an unknown compound was analyzed and found to contain 3.03 g of carbon, 1.01 g of oxygen and 0.63 g of hydrogen.

1) Find the empirical formula of the compound.

2) Using the information given in the spectra below derive the molecular formula of the compound.

3) Using the information given in the spectra below derive the structural formula of the compound.

All spectra were obtained from http://sdbs.riodb.aist.go.jp/sdbs/cgi-bin/direct_frame_top.cgi