7. A student gets the following results after running a TLC plate of several over the counteranalgesics. What should the student do to get better results?O Run the TLC for a longer time.O Co-spot the sample several times.Run a new TLC plate in a less polar solvent.O Run a new TLC in a more polar solvent mixture.

If we get above results after running a TLC plate several over the counter analysis , for better…

Answered: 7. A student gets the following results…

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter5: Chromatography

Section: Chapter Questions

Problem 3Q

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Similar questions

Arrange the following solvents in order of increasing polarity (least polar to most polar): Propyl Amine – Diethyl Ether – Ethyl Acetate- Octane If you ran an unknown sample on a TLC and observed only one spot with a Rf value of 0.95, is it safe to assume that it is a pure compound? If not, how can you check it out using TLC?
Consider this TLC. 1. Which dye is the most polar? 2. Which dye is the least polar? the answers might be a. blue 1 b. red 3 c. yellow 5 d. it cannot be determined from this TLC
Which of the two compounds shown is more polar? Which of the two compounds would have the highest Rf value on a silica gel TLC plate? Calculate the Rf value for the spot shown in lane 5. Give your answer to two decimal places (0.12). The distance measurements start at the origin. The TLC plate shows? 1. the conversion of benzophenone to benzhydrol 2. the destruction of both benzophenone and benzhydrol from the sample 3. the conversion of benzhydrol to benzophenone
Pretending that you got the following TLC result: A. Which is more polar? SA or C? B. Is the extraction that gave the TLC plate in the picture, successful or not? Explain
4. o-dichlorobenzene and p-dichlorobenzene can be separated by TLC. Which compound is more polar? Which compound travels faster on the TLC sheet when hexane is used as the solvent? Explain. (hint- consider molecular polarity) 5. p-dihydroxybenzene and o-dihydroxybenzene can be separated by TLC using a solvent of medium polarity. The ortho isomer has a significantly higher Rf value than the para isomer. Suggest a reason for this difference in Rf values. (hint- consider the structure of these two molecules) 6. Explain how TLC and column chromatography can be used together to ensure the perfect separation of two organic compounds
What is the solvent being used? (Looking at the y-axis)?
Help label all the peaks and determine the functional groups present Note any wide bands or impurities this is an IR of Cr(acac)3 in acetone
Whagt is the purpose of the following? Separate the active ingredients in an unknown over the counter analgesic using TLC (thin layer chromatography). Make a preliminary identification of each active ingredient in an unknown tablet by comparing its Rf value(s) with the Rf values of four different known active ingredients:
what is more polar, pyrrole or benzaldehyde? I need to know for a TLC test/ which one should be further up?
Q.9. To 4-5 drops of an unknown alcohol, 1 mL of Lucas reagent (ZnCl2 + HCl) is mixed. No cloudiness or separate layer was observed in the test tube even after 6 minutes. The unknown alcohol may be options: A) Secondary alcohol B) Primary and secondary alcohol C) Tertiary alcohol D) Primary alcohol
7 . Please make sure the answer that you give me is correct thank you
for the ones i sent please explain them to me

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