Answered: Would you expect to see a difference in…

Would you expect to see a difference in retention times for the ethyl (S)-3-hydroxybutanoate and the (R)-enantiomer on gas chromatography?

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter27: Chiral Reduction Of Ethyl Acetoacetate; Optical Purity Determination

Section: Chapter Questions

Problem 1Q

See similar textbooks

Related questions

Q: A mixture composed of biphenyl, benzoic acid, and benzyl alcohol is spotted on a silica gel TLC…

A: The TLC is better understood by knowing the polarity of the compound to be separated. If we are…

Q: 8. A mixture of five alkyl iodides is separated by gas chromatography using a column packed with…

A: To find out the resolution of the following peaks. (a) 2 and 3 (b) 4 and 5 (c) 5 and 6

Q: If you were to monitor the reaction mechanism for the hydroboration by TLC (Thin Layer…

A: Principle of TLC is based on adsorption phenomenon. Based on the polarity of the substrate the rate…

Q: Suppose the distance a compund moved in a paper chromatography experiment was 30 millameters and the…

A: We have to calculate the Rf value when in paper chromatography, the distance moved by the compound…

Q: Column Chromatography of Spinach Pigments What effect would using pure acetone have on the elution…

A: The mixtures are separated by using a laboratory technique called chromatography.

Q: 3. Would you expect an alcohol or an ether to have a higher R¡ value on silica gel thin layer…

A: TLC is an analytical technique which can be used to monitor the organic reaction transformations.…

Q: In kool aid chromatography, why does reducing the dilution of 2-propanol result in its decrease in…

A: In Kool aid chromatography, different colored dyes are separated using a mobile solvent phase and a…

Q: same Rf

A: Paper chromatography is the simplest technique to separate the colored compounds, polar-non polar…

Q: 3 Briefly describe the process of liquid-liquid extraction. 4 Differentiate between extraction and…

A: The process of Liquid–liquid extraction which is also known as the solvent extraction and…

Q: Why mixture of solvents such as ethyl acetate with 5% acetic acid is used as a solvent/mobile phase…

A: TLC (Thin layer chromatography) is a technique to separate the components of mixture. TLC uses a…

Q: b. Can a mixture of d- and l-carvone be separated by column chromatography on silica gel using…

A: d-carvone and l-carvone are enantiomers of each other and are a class of monoterpenes found in…

Q: Methylcyclohexane and methylcyclohexene were separated by gas chromatography in a capillary column,…

Q: How would the separation have been affected, if the drop of the dye mixture was diluted with 2 mL of…

A: Column chromatography is the technique used for the separation of compounds where the solution…

Q: Briefly outline why cinnamaldehyde, cinnamic acid and cinnamyl alcohol travelled different distances…

Q: Which would elute first in thin layer chromatography, isatin (1H-indole-2,3-dione) or acetylbiphenyl…

A: TLC separates compounds based on the polarities of the constituents.

Q: if you prepare benzhydrol by the reduction of benzophenone with sodium borohydride, how could you…

A: Benzophenone is a ketone and is nonpolar. So benzophenone has high mobility on TLC plate and thus Rf…

Q: i need help drawing the tlc plate and perdicting it for please Reduction of 4-Nitrobenzaldehyde…

A: To draw TLC plate for the reaction

Q: What would be the effect of changing the mobile phase in the base/base extration of 3-nitrotoluic…

A: Mobile phase components should be non-hazardous and non-toxic. They should not pose any health…

Q: Which ONE of the following mobile phases would give the SHORTEST retention time of prednisolone…

A: To determine the solvent in which the prednisolone will give shortest retention time using a reverse…

Q: During a Thin layer chromatography (TLC) analysis of crystallized napthalene, What would be the…

A: Interpretation: To explain the effect of addition of acetic acid to crystallized naphthalene during…

Q: What controls the mobile phase flow rate in ascending TLC or paper chromatography? Do you think it…

A: The answer is given below

Q: A thin-layer chromatography (TLC) experiement was run using three compunds: benzophenone,…

A: A thin-layer chromatography (TLC) experiment was run using three compounds: benzophenone,…

Q: 6) You are given a mixture of organic compounds suspected of containing various amines (e. g.…

A: Solvent extraction- It is a technique used to separate compounds based on their relative solubility…

Q: Which of the following pairs of compounds would be most easily separated by thin layer…

A: Usually, the polar compounds are easily absorbed on the surface of the adsorbent and thus, lower…

Q: i need to caluclate a rf value for the tlc plate and i really need help with showing the steps…

A: TLC can easily tell whether a reaction is complete or not. On a TLC plate, a polar compound takes…

Q: Why sometimes derivatization is used in the sample preparation for GC-MS?

A: The role of derivatization in GC-MS is given below

Q: 2. Do compounds always elute in the same order on a TLC plate and on chromatography column? Why or…

A: TLC stands for thin layer chromatography

Q: . tion three: Describe the basis behind cach of the following mechanical separation methods: 1)…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: Which of the compounds ( diethyl ether, hexane, benzaldehyde, ethanol ) would be eluted firstly from…

A: Chromatography is a very important tool used in the separation of the compounds. It has two…

Q: Suppose you had seven compounds in a paper chromatography experiment, the seventh of which was…

A: Paper chromatography is the one of the techniques is to identify the unknown colour compounds. The…

Q: For Fluorenonce and benzoic acid 1. Which compound would you expect to be the top spot on the TLC…

A: The polar compounds are known for the presence of polar functional groups such as alcohol (-OH) or…

Q: Compound A has a lower affinity for the stationary phase than compound B and can dissolve well in…

A: Compound A will elute first

Q: Which of the water, methanol, ethanol and chloroform produces the best separations in…

A: With increase in polarity the eluting power with polar stationary phases gradually increases ,which…

Q: 5. If we used a 1:1 ligroin.ethyl acetate solution as the eluting solvent for column chromatography,…

A: Beta-carotene is non-polar colored pigment.

Q: How complexation of diclofenac sodium with hydroxy propyl beta-cyclodextrin by high pressure liquid…

A: Diclofenac sodium is a drug used to reduce pain, reduce swelling and joint stiffness (due to…

Q: 10. (a) Remember the structures of cis- and trans- 1,2-dibenzoylethylene. Which diastereomer would…

A: Trans 1,2-dibenzoylethylene would have a greater affinity for the polar mobile solvent.

Q: What would be the order of elution if one separated the three compounds from base/base extraction…

A: Given 3 Compounds 3-nitrotoluic acid, 2-naphthol and 1,4-dimethoxybenzene Method of seperation =…

Q: Why is distillation of cyclohexanol using acid catalyst phosphoric acid a better technique to purofy…

A: The reaction of cyclohexanol using acid catalyst phosphoric acid is directed in a distillation…

Q: Z and E -oct-3-en-2-ol is hard or easy to separate in thin layers in chromatography?

A: Greater the polarity difference between the two components of a mixture easier will be the…

Q: What is the role of the moist filter paper inside the developing chamber during a Thin-Layer…

A: Thin Layer Chromatography (TLC): Thin layer chromatography is the separation technique used in…

Q: what is the advantage of TLC as compared to the column chromatography ?

A: Welcome to bartleby !

Q: Was your column chromatography separation of the three compounds in clove oil successful? Explain…

A: g)

Q: 3. Compound A has an Rf of 0.75 and compound B has an Rf of 0.35. Which compound will elute first…

Q: Draw the molecular structure of glycerol-1-linolenate-2-palmitate-3-eliadate and calculate its…

A: Molecular structure of lipid is

Q: Two compounds A and B from GC on two open tubular columns contains a XY-1 (100% methyl) and a XY-2…

A: In gas chromatography, a more polar group interacts more with the stationary phase (usually silica…

Q: Do compounds always elute in the same order on a TLC plate and on a chromatography column? Why or…

A: Once in a while, rather than letting the eluent go through the segment by means of gravity, the…

Q: Predict the chromatogram of the product against benzophenone by TLC on silica gel using a 4: 1…

A: The chromatogram is a diagrammatic way to represent the separation of the individual compounds of…

Question

Would you expect to see a difference in retention times for the ethyl (S)-3-hydroxybutanoate and the (R)-enantiomer on gas chromatography?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

While preparing the mobile phase to run a monoamine neurochemical HPLC analysis, you miscalculated the amount of acetonitrile you needed to add to your aqueous solution and came up with a 20% acetonitrile solution. How would this small mistake affect the resulting chromatographs?
What would happen if a mobile phase of ethyl acetate/triethly amine is used in column chromatography for (3-nitrotoluic acid, 2-naphthol and 1,4-dimethoxybenzene)
In a gas chromatogram, the retention time of compounds A and B are 1.25 min and 1.45 min, respectively. If both of these compounds have similar structures, which of the compounds has a higher boiling point?
Briefly outline why cinnamaldehyde, cinnamic acid and cinnamyl alcohol travelled different distances on the TLC plate. The solution used to develop the TLC plate was a mixture of toluence and methanol (8:1.5)
What would be the effect of changing the mobile phase in the base/base extration of 3-nitrotoluic acid, 2-naphthol and 1,4-dimethoxybenzene on column chromatography using silica as stationary phase to ethyl acetate/triethyl amine (N(CH3CH3)3)? Explain
Discuss the relationship between boiling point of 1,1-dichlorobutane; 1,2-dichlorobutane; 1,3-dichlorobutane; 1,4-dichlorobutane and their retention time in gas chromatography.
why was 100% hexanes and 9-to-1 hexanes-to-ethyl acetate used for column chromatography but 70% hexanes 30% acetone used for the tlc?
Does the presence of a benzene ring or carboxylic acid functional group in a substance affect the retention factor (Rf) when doing TLC on silica gel ?
Can a mixture of d- and l-carvone be separated by column chromatography on silica gel using hexanes-acetone as the elution solvent?
Would you expect an alcohol or an ether to have a higher Rf value on silica gel thin layer chromatography? Why?
Use a suitable model to explain how separation and identification of a mixture of organic compounds can be achieved with a thin layer chromatographic (TLC) technique.
In kool aid chromatography, why does reducing the dilution of 2-propanol result in its decrease in polarity?