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Required materials: ruler, pencil

 

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1.      Do the internet search to find the possible identity of the unknown based on the picture below. Provide a brief explanation of the findings:








2.     Using a ruler, measure the distances for each spot in every plate. Record the measurements in the tables below. For each spot - calculate RF value

Plate 1



Distance From Origin to Solvent Front =

Unknown

Distance =

RF1=

Distance =

RF2=

Distance =

RF1=

Aspirin

Distance =

RF1=

Ibuprofen

(Advil®)

Distance =

RF1=

Plate 2


Distance From Origin to Solvent Front =

Unknown

Distance =

RF1=

Distance =

RF2=

Distance =

RF1=

Acetaminophen

(Tylenol ®)

Distance =

RF1=

Caffeine

Distance =

RF1=


Plate 3


Distance From Origin to Solvent Front =

Unknown

Distance =

RF1=

Distance =

RF2=

Distance =

RF1=

Naproxen Sodium (Aleve®)

Distance =

RF1=

Phenacetin

Distance =

RF1=

3.      Conclusion: Compare RF values of the spots in unknown sample and RF values for known sample and make a conclusion about what analgesic compounds are present in unknown.  Perform an internet search to see which pills on the market have this composition.




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