Question

Which TLC solvent system (2:1 Hexanes/Ethyl acetate or 4:1 Hexanes/Ethyl acetate) do you expect will lead...

Which TLC solvent system (2:1 Hexanes/Ethyl acetate or 4:1 Hexanes/Ethyl acetate) do you expect will lead to a higher Rf when analyzing banana oil? Explain your answer in DETAIL, which solvent is morepolar/nonpolar and WHY that would effect the Rf

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

IN TLC we always first check the polarity of solute according to that we adjust the amount of polar and non polar solvent. If our solute is polar then we take polar solvent in excess because the solute first interact with solvent which makes it travel more and have high RF value.In this our mixture is banana oil which is non polar in nature and in our solvent system hexane is non polar so we take the solvent system in which hexane amount is more. Hence here we take(4:1) hexanes/ethyl acetate system.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Ethyl acetate is another common organic solvent used in the type of TLC experiment you performed:...
Ethyl acetate is another common organic solvent used in the type of TLC experiment you performed: it has a higher molecular weight and boiling point than either petroleum ether or diethyl ether, and is more polar than them as well. If ethyl acetate had been used as the mobile phase for a TLC analysis of F and AF, how would their Rf values compare to those found using the 1:1 solvent mixture you used? That is, predict how the behavior...
I know that 1:4 acetate; hexane eluting solvent is nonpolar. So what about the 1:2 acetate;...
I know that 1:4 acetate; hexane eluting solvent is nonpolar. So what about the 1:2 acetate; hexane eluting solvent? Is it polar or non polar? When I used 1:4 acetate; hexane eluting solvent, I got that the starting material was more polar from the product because it has a smaller Rf value? If the eluting solvent changed from 1:4 acetate; hexane to 1:2 acetate; hexane, would the Rf values get larger? smaller? same? Explain why please
If a compound has an Rf of 0.25 when a 1:1 mixture of hexane and ethyl...
If a compound has an Rf of 0.25 when a 1:1 mixture of hexane and ethyl acetate is used as the solvent on a silica gel TLC plate, will the Rf value be larger or smaller if a 4:1 mixture of hexane and ethyl acetate were used as the solvent? How would the Rf value change if pure ethyl acetate were used? Explain in terms of the intermolecular interactions how a change in the solvent mixture results in a change...
What effect would changing the developing solvent from 4:6 hexanes:ethyl acetate to 8:2 hexanes:ethyl acetate have...
What effect would changing the developing solvent from 4:6 hexanes:ethyl acetate to 8:2 hexanes:ethyl acetate have on the observed Rf value of 0.42 from a TLC plate? Explain your reasoning.
When ACE, ASP and CAF were analyzed by TLC using 2:9:9 mixture of t-butyl alcohol, 4-methyl-2-pentanone...
When ACE, ASP and CAF were analyzed by TLC using 2:9:9 mixture of t-butyl alcohol, 4-methyl-2-pentanone and ethyl acetate respectively the following Rf values were obtained: ACE (0.51), ASP (0.15) and CAF (0.35). These results are not the same ones obtained when using 2% acetic acid and 98% ethyl acetate as the mobile phase? Explain why were the results different for our case (TLC shown) particularly for caffeine. I know that the 2%/98% mobile phase is mostly nonpolar, so asprin...
1. Several different combinations of solvents have been used for TLC so far. For example, 80%...
1. Several different combinations of solvents have been used for TLC so far. For example, 80% ethyl acetate/20% hexanes was chosen for the TLC separation of analgesics. Consider that solvent for the following questions. a. Is it important that the solvents are miscible? Briefly explain why or why not. b. Briefly explain what would be different if the ratio was flipped (i.e., 80% hexanes). c. Would 100% hexanes have made a good solvent? Briefly explain why or why not. d....
Which of these TLC solvent systems listed below is the most polar and explain why? 1:2...
Which of these TLC solvent systems listed below is the most polar and explain why? 1:2 (v:v) Hexane:diethyl ether 2:1 (v:v) Hexane:diethyl ether 1:3 (v:v) Hexane:diethyl ether 3:1 (v:v) Hexane:diethyl ether 1:1(v:v) Hexane:diethyl ether             (a) The Rf of compound B is? Circle the correct answer. 0.47 0.54 0.60 0.64 0.69 0.78 0.82 1.00 (b) Looking at the TLC plate in 4(a), which compound interacts least with the stationary phase? Explain (4 pts) Would you need to use a more...
2) The following two solvent systems were found to separate compounds X and Y by flash...
2) The following two solvent systems were found to separate compounds X and Y by flash chromatography: • The solvent that placed X in the optimal Rf range is 10:1 hexane: ethyl acetate • The solvent that placed Y in the optimal Rf range is 10:4 hexane: ethyl acetate Which is the more polar compound, X or Y? 3) In order to separate a mixture of X and Y as in problem (2) by flash chromatography, you decide to do...
1. What changes to the migration pattern would you expect if the solvent system contained more...
1. What changes to the migration pattern would you expect if the solvent system contained more water? More chloroform? TLC Analysis of Egg Lipid
4. If we were to use a solvent for an aldol reaction, which of the following...
4. If we were to use a solvent for an aldol reaction, which of the following would be good/bad candidates? Explain the rational for your answer. a. Acetone b. Methylene chloride c. Ethyl acetate d. Diethylether e. Methanol
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT