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Unformatted text preview: 3 organic solvents (ethyl acetate, hexane and methanol) mixed with some diluted ammonium hydroxide. 3. In the following TLC plate, a sample of a medication (Med) was run against a standard (Std). Determine the solvent distance and the R f value for each component. (4 pts) Standard = 3.65 cm Rf = 3.65 cm / 5.12 cm = 0.713 Unknown 2 =3.72 cm Rf= 3.72 cm / 5.12 cm = 0.726 Unknown 1 =2.38 cm Rf= 2.38 cm / 5.12 cm = 0.465 Solvent front = 5.12 cm 4. How many components are in the medication above? (1 pts) 2 5. Does the medication contain the standard? Justify your answer. (3 pts) Yes, the medication probably contains the standard. Unknown 2 has an Rf value very close to the Rf value of the Standard. To be more conclusive, the visualization pattern of Unknown 2 should be compared with the Standard. Std Med Solvent Front Note Rf values are unitless...
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- Spring '11