1. The column chromatography procedure for the separation of a polar and a nonpolar compound calls...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
1. The column chromatography procedure for the separation of a polar and a nonpolar compound calls for sequential elution with the following solvents: hexane, 70:30 hexane : acetone, acetone and 80:20 acetone methanol. Why it is important to follow this solvent order? 2. During a mixture separation with column chromatography, why must the level of the solvent be kept above the top of the stationary phase once the procedure is started? 3. Why did ß-carotene move through the column faster than other components (mostly green and gray), regardless which solvent is used to elute them? [Use structural ideas in your answer and consider the column absorbent.] 1. The column chromatography procedure for the separation of a polar and a nonpolar compound calls for sequential elution with the following solvents: hexane, 70:30 hexane : acetone, acetone and 80:20 acetone methanol. Why it is important to follow this solvent order? 2. During a mixture separation with column chromatography, why must the level of the solvent be kept above the top of the stationary phase once the procedure is started? 3. Why did ß-carotene move through the column faster than other components (mostly green and gray), regardless which solvent is used to elute them? [Use structural ideas in your answer and consider the column absorbent.]
Expert Answer:
Answer rating: 100% (QA)
1 The column chromatography procedure for the separation of a polar and a nonpolar compound calls for sequential elution with the following solvents hexane 7030 hexane acetone acetone and 8020 acetone ... View the full answer
Related Book For
Posted Date:
Students also viewed these general management questions
-
Why do you think it is important to tell employee the purpose of a policy?
-
For determining half-lives of radioactive isotopes, it is important to know what the background radiation is in a given detector over a specific period. The following data were taken in a -ray...
-
It is important to ensure passenger comfort on ships by stabilizing the ship's oscillations due to waves [13]. Most ship stabilization systems use fins or hydrofoils projecting into the water to...
-
1. The operations manager for a well-drilling company must recommend whether to build a new facility, expand his existing one, or do nothing. He estimates that long-run profits (in $000) will vary...
-
Using solubility rules, predict the solubility in water of the following ionic compounds. a. Al(OH)3 b. Li3P c. NH4Cl d. NaOH
-
List some things (product attributes) airline passengers want from their flight.
-
You are to write up the following in the books: 2016 July 1 Started in business with 3,800 cash. 3 Bought goods for cash 480. 7 Bought goods on time 1,200 from J. Gill. 10 Sold goods for cash 172. 14...
-
The shocks and struts division of Transnational Motors Company produces strut assemblies for automobiles. It has been the sole supplier of strut assemblies to the automotive division and charges $48...
-
What variables reduce the strength of acrylic resin denture bases? What processing method is most likely to produce denture bases with decreased fracture resistance?
-
Client's Facts: The client found a check written out to cash in the amount of $750. The check was completely made out when he found it. He took it to the bank, signed it on the back as instructed by...
-
(5,-3, 8) andu = (k, 2, 4) calculate k where u Givenu Leave your answer as an exact value in simplest form. |u 20.
-
BASED ON THE FIRE ASSOCIATION OF SOUTHERN AFRICA WEBPAGE The Fire Protection Association of Southern Africa webpage contains information surrounding their technical services. Compared to the...
-
Explain how does signal attenuation effect transmitted data as it travels through a network.
-
Two corridors 6 m and 4 m wide respectively, intersect at right angles. Find the length of the longest ladder that will go horizontally around the corner.
-
Addresses the four phases of project management: Initiation Phase, Planning Phase, Implementation Phase, and Project Close Phase. Initiation Phase Describe the Initiation Phase. Explain why it is...
-
Assume there is a client that keeps changing their mind about what he wants which could impact your on time project delivery. What strategies should be used as a Project Manager to manage and control...
-
2. You have a house solar project with installed power as follows; . . . Lights: Living room: 300W, Bed room: 100W, Kitchen: 100W, WC: 100W, Others: 100W Plugs: Living room: 600W, Bed room: 300W,...
-
Write a paper about the Working relationship in the organization- collaboration within and outside the organization
-
Two bulbs are connected by a tube, 0.002 m in diameter and 0.20 m in length. Initially bulb 1 contains argon, and bulb 2 contains xenon. The pressure and temperature are maintained at 1 atm and...
-
A piece of hemlock wood measuring 15.15 x 14.8 x 0.75 cm is to be dried from the two large faces from an initial total moisture content of 90% to a final average total moisture content of lo%, with...
-
Pervaporation is to be used to separate ethyl acetate (EA) from water. The feed rate is 100,000 gallday of water containing 2.0 wt% EA at 30C and 20 psia. The membrane is dense polydimethylsiloxane...
-
For each of the following studies, identify the type of graph (histogram, time series graph, or scatter diagram) that would be the most appropriate. (You can use more than one graph of each type, for...
-
Use the data in Table 1.4 to make a histogram of the U.S. dollar prices of a Big Mac in these 20 countries. Use these intervals for the prices: 13, 34, 45, 58. United States Argentina Australia Big...
-
Use the data in Table 1.4 to make a histogram of the U.S. dollar prices of a Big Mac in these 20 countries. Use these intervals for the prices: 12, 23, 34, 45, 58. United States Argentina Australia...
Study smarter with the SolutionInn App