Question

Hi, In organic chemistry Column Chromatography lab experiment there was a question saying What may happen...

Hi, In organic chemistry Column Chromatography lab experiment there was a question saying

What may happen if the level of the developing solvent is allowed to fall below the sand layer?

What would be the correct answer for it?

thanks

Homework Answers

Answer #1

The column Chromatographic Technique is used to Separate Organic compunds, and this is achieved by the "ADSORPTION" of Organic compunds on the surface of Silica

Sand Layer plays an important role in Column Chromatography as they protect column of Silica from any kind damage,due to which uniform bands are formed and effective separation will going to take place

If Developing solvent is allowed to fall below the sand layer the silica column will become DRY and due to which the separting band will merge and the rate of Elution will fall down and separtion will be affected.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Organic chemistry extraction lab question: Given a mixture of water and an organic solvent which is...
Organic chemistry extraction lab question: Given a mixture of water and an organic solvent which is immisxible with water, we have to determine which layer contains the organic solvent. Why can you not always accurately determine the position of the layer by simply checking the density of water and the organic compound?
Column Chromatography Lab: Explain what would happen if you first used the mixed solvent (CH2Cl2/EtOAc), instead...
Column Chromatography Lab: Explain what would happen if you first used the mixed solvent (CH2Cl2/EtOAc), instead of hexane to elute the column filled with the mix of ferrocene and acetylferrocene?1
Column Chromatography lab question: If you are doing a column on a mixture and both compounds...
Column Chromatography lab question: If you are doing a column on a mixture and both compounds come off too quickly to separate, what would be a way to solve the problem?
The question is taken from Organic Chemistry lab assigment, Simple and Fractional Distillation. There are no...
The question is taken from Organic Chemistry lab assigment, Simple and Fractional Distillation. There are no tables, plots, or diagrams; just a quesiton. "Flooding" the packed column during fractional distillation reduces the ability to separate two liquids with similar boiling points. How would a visible liquid phase in the colimn reduce its efficiency?
These are grinard experiment questions from organic chemistry lab 1) why is it ao critical to...
These are grinard experiment questions from organic chemistry lab 1) why is it ao critical to the Grinard formation that the diethyl ether solvent be from a freshly-opened can of anhydrous ether? 2) What is the purpose of mechanically-abrading the surface of the Mg pieces prior to use? 3) Work up the magnesium alkoxide product specifies adding cold 1.0M H2SO4 to the crude reaction mixture. Do you think other acids might be used instead of sulfiric for the operation? Why...
Column Chromatography Theory and Background. I have started but would like to see an example of...
Column Chromatography Theory and Background. I have started but would like to see an example of what can else can be used. Some key points in my background need to include. Describe Column chromatography and its applications Choosing solvents for column chromatography sample and column size packing column two methods, adding sample, eluting column, and monitoring column Column chromatography is used to purify individual chemical compounds from mixtures. Generally, it is used in a glass tube from 5 mm to...
This is a post lab question for my organic chemistry 1 lab course and I just...
This is a post lab question for my organic chemistry 1 lab course and I just cannot seem to find the answer Our lab is preparation and observation of a temperature- dependent liquid crystal display. We melted cholesteryl pelargonate and cholesteryl oleyl carbonate together between two microscope slides and observed the blue/irridescence color that appeared. post lab question i need help with: if your liquid crystal mixture is iridescent at about 15 degrees Celcius, how would you change the method...
Organic Chemistry Lab Question: 1.Describe how one can determine the difference between a solid that has...
Organic Chemistry Lab Question: 1.Describe how one can determine the difference between a solid that has crystallized from solution versus one that has precipitated from solution. Assume the solid has already come out of solution and that you did not observe the process but were given an Erlenmeyer flask with the solid product suspended in the solvent. 2. Unknown A and Unknown B are both solids at room temperature. A mixture of 2.00 g of A and 2.00 g of...
Hi, I am currently working on "Thin Layer Chromatography" lab. I know retention formular is Rf=...
Hi, I am currently working on "Thin Layer Chromatography" lab. I know retention formular is Rf= (Distance moved by compound) / (Distance moved by the mobile phase). listed below are my questions 1.What is the formula for the retention factor (Rf) for which a compound travels? options are Rf=x-y Rf=x+y Rf=x/y Rf= x EE y a. Where X is distance from the compound spot to the solvent front distance from the bottom of the plate the the compound spot distance...
In the synthesis of aniline lab experiment, I have the following post-lab question which I do...
In the synthesis of aniline lab experiment, I have the following post-lab question which I do not know how to answer. Please help, be thorough, and please also describe any intermolecular forces at work. Thank you for your help and time. "If NaOH was not added to the solution, and you then extracted with methylene chloride, what layer/phase would the product be found in? Why?"
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT