Learning to use the Fourier transform infrared spectroscopy (FT-IR)

Purpose of Experiment
The purpose of this experiment was identify an unknown compound using the Fourier transform infrared spectroscopy (FT-IR).
Methods and proceduce
Fourier transform infrared spectroscopy (FT-IR) was used to take the absorbance of the unknown solution. A graph of the results from the spectroscopy was plotted, and used to determine the organic substance. A correlation factor was also obtained from the FT-IR.
Results
The correlation factor obtained was 0.963274, which showed that the mostly likely compound is benzaldehyde from the FT-IR spectrometer and the graph obtained
structure of benzaldehyde
Discussion
The solution is benzaldehyde because the graph plotted showed a C=O strong spike at about 1700, and an indication of benzene ring at about 1600. On the graph, there was an O=H spike at about 3300. Also, the presence of two spikes between 2700 and 2900 indication the presence of an aldehyde as seen in the structure of benzaldehyde. These featured proved that the compound was truly benzaldehyde because the graph obtained showed a lot similarity to that of benzaldehyde.
Conclusion
The purpose of the experiment, which was to identify the unknown compound using the FT-IR spectroscopy, was achieved because the graph showed features which proved that the correlation molecule benzaldehyde was contained in the unknown.