5. Use the GC and IR data to identify the components of your product mixture and

Question

5. Use the GC and IR data to identify the components of your product mixture and the ratio of each of the products. Label all the important peaks on each of the spectra and turn them in with your notebook pages. Analyze this data to make a conclusion about the purity of your product. Compare the IR spectrum you obtained from your final product with the one for the starting material.

User Chromatograms Fragmentor Voltage Collision Energy Ionlzation Mode E x10 6 +El TIC Scan 002-ESBR-2-5.D 52619 2 1.5 4.06 632603 0.5 6.76 213522 4 4.5 5 5.5 6 6.5 7.5 8 8.5 9 3.66 17982 0880 1.35 Agilent Technologies Page 1 of 2 Printed at: 10:33 AM on: 11/13/

Explanation / Answer

5. Given GC chart

peak at 4.06 min, area = 632603

peak at 4.72 min, area = 5262719

peak at 6.76 min, area = 213522

Total area = 6108844

Percent of compound at 4.06 min = (632603/6108844) x 100

                                                      = 10.36%

Percent of compound at 4.72 min = (5262719/6108844) x 100

                                                      = 86.15%

Percent of compound at 4.76 min = (213522/6108844) x 100

                                                       = 3.49%

IR shows,

peak at 3001 cm-1 for sp2 =C-H stretch

1437 cm-1 for C-O stretch

tiny peaks in 1600-1680 cm-1 region

Possible compounds, 1-methylcyclohexane, cyclohexane, methylcyclohexene

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