Homework Answers
Add Answer to:
d. The following TLC plate was run with a mobile phase that consisted of 5% Ethyl...
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...
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same...
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same compound was then spotted on a large TLC plate and again run in hexanes Which TLC plate, B, C, or D, correctly represents how far the compound would run on the longer plate? solvent front solvent - front plate A plate B plate plate D
A TLC plate was run in 1:1 ethyl acetate and hexane, but when developed the plate...
A TLC plate was run in 1:1 ethyl acetate and hexane, but when developed the plate only showed baseline spots. What change could be made to get the spot(s) to move further up the plate? -Spot a new plate and run again in the same solvent system -Spot a new plate and run in neat hexane -Spot a new plate and run in 1:2 ethyl acetate/hexane -Spot a new plate and run in 2:1 ethyl acetate/hexane
Referring back to question 5 above, in the TLC plate on the left the eluting mobile...
Referring back to question 5 above, in the TLC plate on the left the eluting mobile phase solvent was ethyl acetate, in the plate on the right it was 97% ethyl acetate and 3% methanol. Explain why the Rf values in the plate on the right are larger than those in the plate on the left. Your explanation must be in the terms of intermolecular forces, you are not allowed to only use the word "polarity". There are THREE dynamical...
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...
If aspirin (acetylsalicylic acid) is used in a TLC experiment with 1:1 Hexanes / Ethyl acetate...
If aspirin (acetylsalicylic acid) is used in a TLC experiment with 1:1 Hexanes / Ethyl acetate as the solvent system, explain in terms of polarity why the spot would move fast or slow up the TLC plate?
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...
Possible Quiz Questions 1 What two methods of visualizing spots on a TLC plate will you...
Possible Quiz Questions 1 What two methods of visualizing spots on a TLC plate will you use in this Give two reasons why would you predict that the elution solvents (hexanes or acetate) would not be visible under UV visualization? week's lab? ethyl 2. Define R 3. Calculate the R of the spot on the following TLC plate. 4. Which compound in each pair is predicted to have the higher Ri? a. CH3CH2CH2CH2OH and CH3CH2CH2CH28r b. CH3CH2CH2CH2OH and CH3CH2CH2CH2CH2CH2CH3 c....
Why would it be unwise to use 100% ethyl acetate as the first mobile phase you...
Why would it be unwise to use 100% ethyl acetate as the first mobile phase you test when determining the best mobile phase to separate the mixture of analgesics in Procedure? Why do polar compounds move slower up the silica TLC plates than nonpolar compounds? Why does increasing the polarity of the mobile phase increase the rate at which all compounds move up the plate?
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...
6) Plate A, below, represents the TLC chromatogram of a compound run in hexanes. The same compound was then spotted on a large TLC plate and again run in hexanes Which TLC plate, B, C, or D, correctly represents how far the compound would run on the longer plate? solvent front solvent - front plate A plate B plate plate D
Referring back to question 5 above, in the TLC plate on the left the eluting mobile phase solvent was ethyl acetate, in the plate on the right it was 97% ethyl acetate and 3% methanol. Explain why the Rf values in the plate on the right are larger than those in the plate on the left. Your explanation must be in the terms of intermolecular forces, you are not allowed to only use the word "polarity". There are THREE dynamical...
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...
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...
Possible Quiz Questions 1 What two methods of visualizing spots on a TLC plate will you use in this Give two reasons why would you predict that the elution solvents (hexanes or acetate) would not be visible under UV visualization? week's lab? ethyl 2. Define R 3. Calculate the R of the spot on the following TLC plate. 4. Which compound in each pair is predicted to have the higher Ri? a. CH3CH2CH2CH2OH and CH3CH2CH2CH28r b. CH3CH2CH2CH2OH and CH3CH2CH2CH2CH2CH2CH3 c....
Why would it be unwise to use 100% ethyl acetate as the first mobile phase you test when determining the best mobile phase to separate the mixture of analgesics in Procedure? Why do polar compounds move slower up the silica TLC plates than nonpolar compounds? Why does increasing the polarity of the mobile phase increase the rate at which all compounds move up the plate?
Most questions answered within 3 hours.
-
Brown Corporation makes four products in a single facility.
These products have the following unit product...
asked 1 minute from now -
20% of all customers subscribe to phone service.
70% of all customers subscribe to internet service....
asked 15 minutes ago -
Write a program to solve the Josephus problem, with the following
modification:
Sample Input:
./a.out n...
asked 2 hours ago -
At the start of a CD it is spinning at a rate of 525 rpm
(revolutions...
asked 3 hours ago -
4. Without doing any calculations, predict whether the observed
∆T would increase, decrease or remain the...
asked 4 hours ago -
Based on the range, which of the following sets of scores has
the greatest variability? 3,...
asked 5 hours ago -
Ripples in a pond travel at a velocity of 3 m/s with one peak
passing a...
asked 5 hours ago -
A man stands on the roof of a building of height 13.0 mm and
throws a...
asked 5 hours ago -
The extent to which assets are financed by borrowed funds and
other liabilities is indicated by:...
asked 6 hours ago -
Explain in detail
Germany is the fifth largest economy
explain what goods and services Germany specializes...
asked 7 hours ago -
The density of platinum is 21.45 g/mL. If a cube of platinum
with a mass of...
asked 7 hours ago -
Accounts Receivable
Sales
A/R Posting
Extended Sales Invoice
Packing Slip
Compare invoice to packing slip 2...
asked 7 hours ago