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Arrange the following in order of expected Rr value on a silica gel TLC plate and...
4. Consider the following silica gel TLC plac or compounds A, B, and hexines: developed in...
4. Consider the following silica gel TLC plac or compounds A, B, and hexines: developed in Fo-o- og a) Determine the Rr values of compounds A, B, and C run on a silica gel TLC plate using hexanes as the solvent b) Which compound, A, B, or C. is the most polar? values if you used acetone instead c) What would you expect to happen to the of hexanes as the eluting solvent? 5) Consider a sample that is a...
TLC Consider the following silica gel TLC plate of compounds A, B, and developed in hexanes:...
TLC Consider the following silica gel TLC plate of compounds A, B, and developed in hexanes: solvent front 0 D origin A B C 22. Determine the Ry values of compounds A, B, and Crun on a silica gel TLC plate using hexanes as the solvent. 23. Which compound, A, B, or C, is the most polar? 24. What would you expect to happen to the Ry values if you used acetone instead of hexanes as the eluting solvent? 25.TLC...
Which compound is likely to have the highest Rf value on silica gel TLC? Group of...
Which compound is likely to have the highest Rf value on silica gel TLC? Group of answer choices A) Benzoic Acid B) Dimethylaniline C) Benzophenone D) They will all have the same Rf value.
6. Silica gel was used as the solid support for the TLC plate. Which of the...
6. Silica gel was used as the solid support for the TLC plate.
Which of the three compounds (A, B, or C) in the APPLIED MIXTURE is
the least polar? (See the figure attached.)
8. Which compound below will have the highest Rf on a TLC
plate? Explain your reasoning. (See figure attached.)
10. The following TLC plates have been spotted with two
different compounds and are about to be eluted. For each plate,
explain if it has been spotted...
Expert Q&A Done TLC plate w silica gel in order of 1 cholesterol(standard) 2. Lecithin (standard)...
Expert Q&A Done TLC plate w silica gel in order of 1 cholesterol(standard) 2. Lecithin (standard) 3. Triglyceides (standard) 4. Egg(food sample) 5. Milk ( food sample) 1. Which lipids are in your food extracts? 2.Which lipids seems to be most abundant? Which is least abundant? 3.Do other lipids appear to be in food extracts besides the standards? 4. Explain the relative migration of the three standards from their structures and the relative polarities of the solvent mixture and the...
One student ran a TLC of an unknown compound on a silica gel plate and the...
One student ran a TLC of an unknown compound on a silica gel plate and the distance from the starting line to the solvent front was 4 centimeters. the compound being analyzed had Rf of 0.25. Another student was analyzing another unknown compound by TLC on an identical plate but the distance from the starting line to the solvent front was 5 cm and the distance from the starting line to the compound was 1.25 cm. Are the students compounds...
kindly answer the following thank you! 3. Since the surface of the silica gel on a...
kindly answer the following thank you!
3. Since the surface of the silica gel on a silica gel TLC plate is covered in SI-O-H groups, organic molecules that can hydrogen bond will be much more attracted to the silica gel surface. Given that which of the following compounds would have the lowest Rf value if each of these was analyzed using a slica gel TLC plate and dichloromethane as a solvent? OH 4. Determine the Rf values for the two...
Please help 2. Consider the TLC plate shown below that was done on silica gel using...
Please help
2. Consider the TLC plate shown below that was done on silica gel using a solvent mixture of 4:1 hexane/EtoAc as the eluent. 4:1 Hexane:EtOAC marked solvent front Spot B Spot A A origin (a) Which of the two organic compounds labeled A and B is less polar? (b) Calculate the Rf value of compound B. (c) How would the following changes affect the Rf values of A and B? i. Change to a more polar solvent mixture...
2. A silica gel TLC plate developed with 5% acetic acid in ethyl acetate is depicted...
2. A silica gel TLC plate developed with 5% acetic acid in ethyl acetate is depicted below. Each spot on the plate corresponds to one of the compounds given on the right. Match each spot with a compound. ТСН, H.CO nambumetone ОН a) A=nambutone B= tolmetin C =phenacetin b) A=nambutone B=phenacetin C = tolmetin c) A=phenacetin B= tolmetin C = nambutone A= tolmetin B=phenacetin C = nambutone e) A=phenacetin B=nambutone C = tolmetin tolmetin phenacetin
Why does 4-bromonitrobenzene have a larger ? value than 2-bromonitrobenzene in silica gel TLC? R
Why does 4-bromonitrobenzene have a larger
? value than 2-bromonitrobenzene in silica gel TLC?
R
4. Consider the following silica gel TLC plac or compounds A, B, and hexines: developed in Fo-o- og a) Determine the Rr values of compounds A, B, and C run on a silica gel TLC plate using hexanes as the solvent b) Which compound, A, B, or C. is the most polar? values if you used acetone instead c) What would you expect to happen to the of hexanes as the eluting solvent? 5) Consider a sample that is a...
TLC Consider the following silica gel TLC plate of compounds A, B, and developed in hexanes: solvent front 0 D origin A B C 22. Determine the Ry values of compounds A, B, and Crun on a silica gel TLC plate using hexanes as the solvent. 23. Which compound, A, B, or C, is the most polar? 24. What would you expect to happen to the Ry values if you used acetone instead of hexanes as the eluting solvent? 25.TLC...
6. Silica gel was used as the solid support for the TLC plate.
Which of the three compounds (A, B, or C) in the APPLIED MIXTURE is
the least polar? (See the figure attached.)
8. Which compound below will have the highest Rf on a TLC
plate? Explain your reasoning. (See figure attached.)
10. The following TLC plates have been spotted with two
different compounds and are about to be eluted. For each plate,
explain if it has been spotted...
Expert Q&A Done TLC plate w silica gel in order of 1 cholesterol(standard) 2. Lecithin (standard) 3. Triglyceides (standard) 4. Egg(food sample) 5. Milk ( food sample) 1. Which lipids are in your food extracts? 2.Which lipids seems to be most abundant? Which is least abundant? 3.Do other lipids appear to be in food extracts besides the standards? 4. Explain the relative migration of the three standards from their structures and the relative polarities of the solvent mixture and the...
kindly answer the following thank you!
3. Since the surface of the silica gel on a silica gel TLC plate is covered in SI-O-H groups, organic molecules that can hydrogen bond will be much more attracted to the silica gel surface. Given that which of the following compounds would have the lowest Rf value if each of these was analyzed using a slica gel TLC plate and dichloromethane as a solvent? OH 4. Determine the Rf values for the two...
Please help
2. Consider the TLC plate shown below that was done on silica gel using a solvent mixture of 4:1 hexane/EtoAc as the eluent. 4:1 Hexane:EtOAC marked solvent front Spot B Spot A A origin (a) Which of the two organic compounds labeled A and B is less polar? (b) Calculate the Rf value of compound B. (c) How would the following changes affect the Rf values of A and B? i. Change to a more polar solvent mixture...
2. A silica gel TLC plate developed with 5% acetic acid in ethyl acetate is depicted below. Each spot on the plate corresponds to one of the compounds given on the right. Match each spot with a compound. ТСН, H.CO nambumetone ОН a) A=nambutone B= tolmetin C =phenacetin b) A=nambutone B=phenacetin C = tolmetin c) A=phenacetin B= tolmetin C = nambutone A= tolmetin B=phenacetin C = nambutone e) A=phenacetin B=nambutone C = tolmetin tolmetin phenacetin
Why does 4-bromonitrobenzene have a larger
? value than 2-bromonitrobenzene in silica gel TLC?
R
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