describe the procedure for carrying out solvent extraction from an organic layer into an aqueous layer,...

describe the procedure for carrying out solvent extraction from an organic layer into an aqueous layer, where the aqueous layer is heavier than the organic layer. Then, describe the procedure for a solvent extraction from an aqueous layer into an organic layer, where the aqueous layer is heavier than the organic. please higlight main differencces between the two procedures.

Expert Solution

Ans. The principle and procedure for both the extractions remains the same.

Transfer the two solution in a separatory funnel. Gently mix the content several times with venting. Allow the two phases to separate. The heavy aqueous is at bottom and the lighter organic layer is at top of aqueous layer.

# Case 1. Extracting the solute from Organic to Aqueous layer: Since the desired solute is extracted in the aqueous phase, be careful not to discard it. The heavier aqueous layer at the bottom should be removed through the valve near the bottom.

# Case 2. Extracting the solute from Aqueous to Organic layer: Be careful not to discard the organic phase because it consists our desired solute. The organic layer is poured/ decanted through the mouth at top of separatory funnel.

queen_honey_blossom answered 2 years ago

From the discussion above, which layer (aqueous or organic) of a liquid-liquid extraction should contain the...

From the discussion above, which layer (aqueous or organic) of a liquid-liquid extraction should contain the ammonium salt of an organic compound, and why? Describe the procedure you would use in the laboratory to determine which layer is organic and which layer is aqueous. (Assume you do not have access to physical constants for the solvents being used.) What is the purpose of adding anhydrous sodium sulfate into an organic layer that results from a liquid-liquid extraction? If a mixture...

This is Organic Chemistry Lab, Solvent Extraction. 1. What are the criteria for solubility of organic...

This is Organic Chemistry Lab, Solvent Extraction. 1. What are the criteria for solubility of organic molecules in water? 2. If methylene chloride was used as the organic solvent in solvent extraction, instead of ether, what would the top layer be in the separation step? 3. What formula was used to calculate interaction of organic compounds with the stationary phase? 4. In the given mixture (liquid-liquid), which compound (be specific) has the weakest interaction with the stationary phase? Why?

For the extraction of oil from soybean either leaching using conventional organic solvent or supercritical carbon...

For the extraction of oil from soybean either leaching using conventional organic solvent or supercritical carbon dioxide can be used. For answering the following questions, please cite your text and indicate all the references at the end of your text. You need to use reliable references such as journal articles to support your answer. a) describe the fundamental reason for separation of oil from soybean in the cases of leaching and supercritical carbon dioxide extraction. b) describe the operating principles...

Part D: extraction of the mandelic acid solution with one 50ml aliquot of organic solvent a)...

Part D: extraction of the mandelic acid solution with one 50ml aliquot of organic solvent a) Calculate the moles of sodium hydroxide used to titrate the 5.0ml of extracted water b) calculate the moles of mandelic acid in the 5.0ml of extracted water c) determine the mass of the mandelic acid in the 5.0ml of extracted water. d) determine the concentration of mandelic acid in g/ml Part E: Rank the extraction techniques from best to poorest in their ability to...

In the extraction of trimyrisitn from nutmeg: Why was diethyl ether used as the extraction solvent...

In the extraction of trimyrisitn from nutmeg: Why was diethyl ether used as the extraction solvent instead of using acetone directly, since you were going to recrystallize using acetone anyway How would your results be different (if at all), if the reflux was only done for 10 minutes? Briefly explain Why is the technique of reflux generally used in organic chemistry

Identify organic and aqueous solvent layers AND Isolate and ID organic compound Possible solids: fluorene, triphenylmethanol,...

Identify organic and aqueous solvent layers AND Isolate and ID organic compound Possible solids: fluorene, triphenylmethanol, benzoic acid, salicylic acid, ethyl-4-aminobenzoate, para-aminoacetophenone Possible organic solvents: diethyl ether, hexane, methylene chloride Possible aqueous layer: water, 1M NaOH, or 1M HCl What steps can be done to do this in the lab?

1. Why organic solvent is often used in liquid-liquid extraction? 2. Name the adverse effects which...

1. Why organic solvent is often used in liquid-liquid extraction? 2. Name the adverse effects which occur when a trayed absorption tower operates at too high and too low vapor flow rate? 3. Component separation involving two or more phases (regardless of technique) occurs because systems want to achieve equlibrium and as a result, mass transfer occurs. In a scenario where this mass transfer is particularly slow, would it be more accurate to model a system based on phase equlibrium...

a) Show the reaction of 4-methoxyaniline hydrochloride with ammonia. Indicate which layer (aqueous or organic) each...

a) Show the reaction of 4-methoxyaniline hydrochloride with ammonia. Indicate which layer (aqueous or organic) each component in the reaction will mainly reside in (For both products & reactants). b) Show the reaction of acetylsalicylic acid with NaHCO3 (sodium bicarbonate). Indicate which layer (aqueous or organic or both) each component in the reaction will mainly reside in.

Organic chemistry question about extraction lab...? Procedure: Place 2.0 g of the mixture of sucrose, acetylsalicylic...

Organic chemistry question about extraction lab...? Procedure: Place 2.0 g of the mixture of sucrose, acetylsalicylic acid and acetanilide into a 125 mL Erlenmeyer flask. Add 50 mL of methylene chloride (dichloromethane) and dissolve as much of the solid as possible. Remove the insoluble sucrose via gravity filtration using fluted filter paper. Allow to dry until the next lab period. Add the methylene chloride solution to the separatory funnel and extract it with two 25 mL portions of 5 %...

show the reaction of 4-methoxyaniline hydrochloride with ammonia. Indicate which layer (aqueous or organic) each component...

show the reaction of 4-methoxyaniline hydrochloride with ammonia. Indicate which layer (aqueous or organic) each component in the reaction will mainly eside in (For both products and reactants)

Question