Ans: 1. Column chromatography is based on adsorption of compounds on adsorbent (silica).
2. Different compounds are having different polarity so they will adsorb differently through hydrogen bonding to silica used in column.
3. If compound is more polar it will get adsorbed mor tightly and compounds which are non polar which will travel with solvent fastly.
4. So if compound with more polar functionality travel through coloumn slowly and compounds which are non polar travel fastly with solvent.
In this way different compounds will get separated in column based on polarity of components.
1.Why does the separation of the different components occur within the column?
Why does toluene and ethylene glycol display liquid-liquid separation? Why does liquid-liquid separation occur and deviate from ideal liquid-vapor equilibrium?
1) why does pH affect the HPLC separation of vitamins on a reverse phase column? 2) considering the Van Deemter equation, what effect would decreasing the particle size have on resolution? please answer question number 2!
FRACTIONAL DISTILLATION COLUMN 1. Critical components of the unit operation a. Identify THREE critical components of the unit operation. b. Explain why these components are important for the proper function of the unit operation. 2. Different designs of unit operation a. With respect to the unit operation that you have selected, describe the different types of configuration or design that are available in the industry. b. Examine the working principles for each of the configurations/ designs and compare their advantages...
1) Why is the column packing material used in the fractional distillation column? 2) What should be the characteristic features of an ideal column packing material? 3) Two fractional distillations are run with identical mixed samples of two liquids using different columns. In apparatus A, the column is 15 em long, and in apparatus B, the column is 25 cm long. Will one apparatus provide any better separation of the mixture then the other? If so which one and why?...
Question 1: (column chromatography) a. What effect on the chromatographic separation is expected if solvent level is below the adsorbent? b. Once the chromatographic column was prepared, why was it important to allow the level of the liquid in the column to drop to the level of the stationary phase before applying the solution of the compounds to be separated? c. Name two methods of carrying out the column chromatography technique? d. What are the two methods of packing a...
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5. Would increasing the amount of alumina in the column result in a more effective separation? Why or why not, in your specific case?