While organizing the undergraduate stockroom, a chemistry instructor found a con
ID: 931622 • Letter: W
Question
While organizing the undergraduate stockroom, a chemistry instructor found a container with a cloudy liquid (bp 137oC), an no identifying label You, as a lab technician, are as asked to identify this liquid so it can be properly labeled. You take this liquid to the instrument room and acquired a mass spectrum and IR of the sample which are printed below. As soon as the instructor saw the spectral data they said “I know what this is”. What is this compound & explain why this was so easy for the instructor to deduce.
@ 2%( + 4:01 PM A 47997c75-a-62cb3ala-s-sites.googlegroups.com iPad 100 80 60 40 20 136 138 93 95 120 140 160 180 200 220 20 40 60 80 100 LOD 5D 500 1000 2000 1500 4000 cmExplanation / Answer
Ethyl benzene
In the Mass spectra base peak belongs to the Ethyl group.
The IR specra shows aromatic C-H streching frequency and the Boiling point also matches.
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