1) Make a data table for your IR. Label the important peaks on your spectrum and
ID: 480468 • Letter: 1
Question
1) Make a data table for your IR. Label the important peaks on your spectrum and in your table. Be sure to signify the functional group corresponding to each wave number.
2) Assuming you are working with an aqueous solution, propose two other solvents that may be beneficial for performing an extraction. In other words, name two solvents other than ethyl acetate that can be used for aqueous extractions. Provide the densities of each solvent and explain whether these solvents will be located above or below your water layer in the separatory funnel.
1556.55--- 1492.90--- 140804 1305.81- 1292.31- 744.52 680.87 19674 103.95: Phenylalanine- ! 110 %T 100 90 80 . 70 60 50 92 04 40- 4500 4000 3500 3000 2500 2000 1750 1500 1250 1000 750 500 250 cn-1Explanation / Answer
1.
1556 cm-1 may corrospond to asymmetrical streatching of CO2-
1492 cm-1 may corrospond to in-plane symmetrical bending of NH3+
1408 cm-1 may corrospond to symmetrical streatching of CO2-
1305 cm-1 may corrospond to in-plane symmetrical bending of CH2
1292 cm-1 may corrospond to Rocking vibrations of NH3+
2. Chloroform: Chloroform can be used as an extraction solvent from water. Chloroform has more density (1.49 gm/cm3) than water (1.0 gm/cm3) hence it will be located in below the water layer in separatory funnel.
Carbon tetrachloride: Carbon tetrachloride can be used as an extraction solvent from water. CCl4 has more density (1.59 gm/cm3) than water (1 gm/cm3), hence it will be located in below the water layer in separatory funnel.
Diethyl ether: Diethyl ether can be used as an extraction solvent from water. It has less (0.71 gm/cm3) density than water. Hence, the organic layer will be located above aqueous layer.
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