2. A student spots a mixture of the following compounds on a TLC plate and uses a 50:50mixture of hexanes: ethyl acetate as the development solvent. Which compound is expected tohave a larger Rf value?ноandAВNot enough information given to answer the question.Their structures are too similar to separate by TLC.O A

It can be said that Rf factor totally depends on polarity of the compound and defined as a ratio…

Answered: 2. A student spots a mixture of the…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL3: Carbon (13c) Nmr Spectroscopy

Section: Chapter Questions

Problem 11CTQ

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Similar questions

Which amomg the fragments below will be dectected by mass Spectrophotometer? [CH3CH3]+ CH3CH3 •CH2CH3 [CH3CH4]- only ii i and iii only i ii and iv only ii
True or False: Rf values can be used to identify pure compounds, provided that the analysis of the unknown is run simultaneously with the known compound in the same TLC plate.
As1...If a TLC plate shows only one spot with an Rf value of 0.98, does this mean the sample is pure? Briefly explain why or why not.
Which amomg the fragments below will be dectected by mass Spectrophotometer? [CH3CH3]+ CH3CH3 •CH2CH3 [CH3CH4]-
Which of the compounds shown most closely corresponds to the IR data: 2950-2850cm−1? Select the single best answer.
An unknown mixture was analyzed with TLC on a silica gel plate. Development gave two spots with Rf values of 1.0 and 0.0 respectively.a) Can you say for sure how many compounds are present in the mixture? If so, how many are there? Explain. b) If not, what additional TLC experiment(s) might be performed to determine how many components are present? Explain.
1. Which compound will have the largest Rf value on a TLC plate using 10% ethyl acetate/hexane as a developing solvent: 3- decanone or 3- decanol, toluene or benzoic acid, cyclohexane or cyclooctanone? Explain why?
Please fully annotate this IR spectrum in the picture below, no need to annotate the fingerprint region (400-1500 cm-1). Thank you so much!!
I had having trouble understanding the TLC labs. Could someone help explain how to tell which compound has a higher Rf value? benzoic acid or trans-stilbene?
Based on the photos below, could you give me the IR peaks information: Entry, λ (cm-1), and bond responsible for the peak
Identify the statement that correctly interprets this TLC analysis of a recrystallized sample of acetaminophen produced following the procedure outlined in Experiment 5: The TLC of an individuals purified acetaminophen showed two spots. One spot had an Rf identical to that of pure acetaminophen. This spot was also larger and darker than the second spot. The Rf of the second spot was very close to the Rf of pure 4-aminophenol. a) The two spots evident in my TLC analysis indicate my sample is a mixture. Since each spot has an Rf value that is close to the Rf of one of the authentic materials tested, I can conclude my sample is a mixture of acetaminophen and 4-aminophenol. The large size of the spot with an Rf nearly identical to authentic acetaminophen indicates my sample is mostly 4-aminophenol. b)I can conclude from this evidence that my sample is a mixture of acetaminophen and 4-aminophenol because the Rf of each of the spots is nearly identical to one of the authentic…
How would you interpret this IR spectroscopy of 9-fluorenone? Some background information is that this was a lab to separate fluorene and 9-fluorenone. It should be noted that other solids and solvents used during the column chromatography was alumina, sand, petroleum ether, and dichloromethane. The original compound was 0.05 g but it yielded 0.03 g 9-fluorenone. There may or may not be impurities.

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