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You have run a TLC (on a silica plate), your sample contains a very...
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...
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...
can you please answer all 1. When you run a TLC of the reaction in ethyl...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 7 6 5 4 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most polar? (5 points) 2. Why is it...
Chm 250 please help ASAP Thank you and it's in exam Below is a TLC plate...
Chm 250 please help ASAP
Thank you and it's in exam
Below is a TLC plate in which silica gel is the stationary phase. (1) What does "TLC" stand for? (2) For samples 1 through 5 which one contains the compound of largest polarity? Explain your answer. (3) Based on the TLC result, what are the components of mixture M?
can you please answer all 1. When you run a TLC of the reaction in ethyl...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes :: 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 9 10 8 7 LLLLLLL 6 5 4 001 2 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most...
Hi can someone help me with my pre lab theory questions (1,2,3) on rate of elution...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
in 10:1 Hexane: 8: Use the image below to answer the following questions. The TLC plate was run gityl Acetate. (4 p...
in 10:1 Hexane: 8: Use the image below to answer the following questions. The TLC plate was run gityl Acetate. (4 points А.suong ial 8 -Starting Material and Reaction Product A) Calculate the Rf value for the starting material. (1 point) B) Calculate the Rf value for the product.(1 points) C) Is the product or the starting material more non-polar? (1 point) D) Is the reaction complete? (1 point) Question 9: Label the following peaks a-e on the H-NMR spectra...
need help in this 5Q The molecule of n-butane contains localized bonds Select one: O True...
need help in this 5Q
The molecule of n-butane contains localized bonds Select one: O True O False Which one is the correct order of stabilities? o O-O+ H2C=CH-C-H H3C EC-H ΙΩ H3C -C H FC-H А B Select one: O a. A CB b. BCA O c. A-B-C O d. c-A-B O e. None Which on of the following is more stable? + + HC H3C B Select one: a. A O b.B O c. Both A and B...
PLEASE HELP ASAP For this QUIZ you will need to make the following input file character_sequence.txt:...
PLEASE HELP ASAP
For this QUIZ you will need to make the following input file character_sequence.txt: Abc a b c gfg hg d xyz z a b uvw a Ml jkl n ml stu tru Wuu CbA Input Format Each line in the input file contains a sequence of three characters separated by white spaces: chari chara char Instructions Write and run a C++ program that reads the input data from file character_sequence.txt and prints on separate lines on the...
just read it again you will understand please help asap sphere of mass m= 250g Carries...
just read it again you will understand please help asap
sphere of mass m= 250g Carries a charge to a mass less string A small of q = -450 NC. It's tied of length L= 8cm. The string is tied to a horizontal Post at Point & There are two very large horizontal plates at y=+12cm. The top plate Carries acharge of to 6,=+7.65 pc/cm2 and the bottom plate Carries a charge of 6₂ = -7.65 pc/cm2. The string is...
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...
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...
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 7 6 5 4 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most polar? (5 points) 2. Why is it...
Chm 250 please help ASAP
Thank you and it's in exam
Below is a TLC plate in which silica gel is the stationary phase. (1) What does "TLC" stand for? (2) For samples 1 through 5 which one contains the compound of largest polarity? Explain your answer. (3) Based on the TLC result, what are the components of mixture M?
can
you please answer all
1. When you run a TLC of the reaction in ethyl acetate : hexanes :: 1:1, the plate below is produced. Give a solvent system that would be expected to produce greater separation and a BRIEF (8 words) justification about your choice. (5 points) 9 10 8 7 LLLLLLL 6 5 4 001 2 3 b. Calculate the R for the bottom spot. (5 points) c. Which compound on the TLC plate is the most...
Hi can someone help me with my pre lab theory questions (1,2,3)
on rate of elution or Rf? Here is some background below. Please
help explain as many as possible (1-3)! I dont really get the
relation ships in this lab, thank you!
1. What factors affect the rate of elution in organic compounds? 2. Explain what is the relationship between polarities of compounds (polar/non- polar compound) and rate of elution (Rf). 3. Explain what is the relationship between solvent...
in 10:1 Hexane: 8: Use the image below to answer the following questions. The TLC plate was run gityl Acetate. (4 points А.suong ial 8 -Starting Material and Reaction Product A) Calculate the Rf value for the starting material. (1 point) B) Calculate the Rf value for the product.(1 points) C) Is the product or the starting material more non-polar? (1 point) D) Is the reaction complete? (1 point) Question 9: Label the following peaks a-e on the H-NMR spectra...
need help in this 5Q
The molecule of n-butane contains localized bonds Select one: O True O False Which one is the correct order of stabilities? o O-O+ H2C=CH-C-H H3C EC-H ΙΩ H3C -C H FC-H А B Select one: O a. A CB b. BCA O c. A-B-C O d. c-A-B O e. None Which on of the following is more stable? + + HC H3C B Select one: a. A O b.B O c. Both A and B...
PLEASE HELP ASAP
For this QUIZ you will need to make the following input file character_sequence.txt: Abc a b c gfg hg d xyz z a b uvw a Ml jkl n ml stu tru Wuu CbA Input Format Each line in the input file contains a sequence of three characters separated by white spaces: chari chara char Instructions Write and run a C++ program that reads the input data from file character_sequence.txt and prints on separate lines on the...
just read it again you will understand please help asap
sphere of mass m= 250g Carries a charge to a mass less string A small of q = -450 NC. It's tied of length L= 8cm. The string is tied to a horizontal Post at Point & There are two very large horizontal plates at y=+12cm. The top plate Carries acharge of to 6,=+7.65 pc/cm2 and the bottom plate Carries a charge of 6₂ = -7.65 pc/cm2. The string is...
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