Extraction: Separation of a Neutral and Basic Substances 1 Dissolve 2 g of a mixture of naphthalene and 4-chloroaniline in 20 mL of ethyl ether and transfer the solution to a 125-mL separatory funnel. 2 Add 10 mL of 3M hydrochloric acid to the separatory funnel. 3 Shake well and wait until two layers are formed. 4 Draw off the lower layer into an Erlenmeyer flask (Flask A) and pour the upper layer from the top of the separatory funnel to another Erlenmeyer flask (Flask B). 5 After 20 mL of 3 M sodium hydroxi de solution is added to Flask A, cool the flask in flask A 087 6 Collect the solids by suction filtration and recrystallize the solids from 40 mL of hot ice water bath for 10 minutes. water. 7 Wash the crystals with cold water. 8 Add 2 g of calcium chloride pellets to Flask B and let it stand for 2 minutes. 69 9 Decant the liquid from the calcium chloride pellets to a beaker. 10 Evaporate the ethyl ether on a steam bath and then cool the beaker in ice bath. 11 Collect the solids by suction filtration and recrystallize the solids from 10 mL of hot methanol. 12 Wash the crystals with cold methanol. 13 Calculate the percent recovery of each product.
Homework Answers
Hope this helps you
Add Answer to:
noinizdle dn Draw a flow sheet to describe the separation procedure. (10 pts) doprleoudenagne aded 6....
Attached below are the pages from this lab report to help give context to the questions....
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
QUESTION: Write a flow scheme for the work-up. THE WORK UP:
QUESTION:
Write a flow scheme for the work-up.
THE WORK UP:
C. Work-up (save all layers) and Isolation of Product MgBrCl Benzoic acid Transfer the mixture into a test tube. Rinse the beaker with about 3 mL of regular (not anhydrous) diethyl ether and pour the washings into the test tube. There should be two distinct layers in the test tube Remove the aqueous layer (to be discarded) and shake the ether layer with about 2 mL of 3 M...
Experiment: A mixture of equal proportions of benzoic acid, ethyl 4-aminobenzoate, and 1,4-dimethoxybenzene are to be...
Experiment: A mixture of equal proportions of benzoic acid, ethyl 4-aminobenzoate, and 1,4-dimethoxybenzene are to be separated by extraction using the solvent diethyl ether. Day 1: Part A. Isolation of the basic component: In a small beaker, dissolve 3 g of the mixture (benzoic acid, ethyl 4-aminobenzoate, and 1,4-dimethoxybenzene) in 30 mL of diethyl ether and transfer the mixture to a 125- mL separatory funnel (see Fig. 1) using a little diethyl ether to complete the transfer. Add 10 mL...
How can the NMP oxalate salt be converted back to NMP? Here is the procedure: PROCEDURES...
How can the NMP oxalate salt be converted back to NMP? Here is the procedure: PROCEDURES Part A: Synthesis of (±)-N,N-dimethyl-3-phenyl-3-(4-trifluoromethylphenoxy)propanamine To the 250-mL round-bottom flask (RBF) containing (±)-3-(dimethylamino)-1-phenylpropanol (product from Lab 6) and a magnetic stir bar, add 4 mL of 4-chlorobenzotrifluoride and 30 mL of dimethylacetamide (DMA). With stirring, add to this mixture 30 mL of 1.0 M potassium tert-butoxide (caustic alkali!) in tert-butyl alcohol using a syringe. Using a simple distillation apparatus, distill the mixture slowly, with...
Extraction of solids: Experiment outlined below Draw a “roadmap” of the experiment, containing chemical structures and...
Extraction of solids: Experiment outlined below
Draw a “roadmap” of the experiment, containing chemical
structures and “layers” (organic and aqueous). This should contain
the individual reactions occurring in each step, and show which
layer the various components are present. Make sure you think about
whether the acetaminophen, caffeine and aspirin are neutral,
protonated or deprotonated.
Preliminary separation obtain a sample (1.0g) of the mixture. weigh the sample and record it. this sample should consist of a 2:1:1 mixture (by mass)...
Draw an extraction flow chart for the Extraction experiment you completed. experiment below Separation of a...
Draw an extraction flow chart for the Extraction experiment you completed. experiment below Separation of a Benzoic Acid/Biphenyl Mixture by Acid-Base Extraction Prepare the solution to be extracted by dissolving 2.5 g of a 1:1 mixture of benzoic acid/ biphenyl in 25 mL of tert-butyl methyl ether (MTBE) . Using a 125 mL separatory funnel extract the ether solution with a mixture containing 10 mL of distilled water and 15 mL of saturated NaHCO3 . Repeat After removing the aqueous...
Propose another way of synthesizing NMP from the amino ketone hydrochloride salt starting materia...
Propose another way of synthesizing NMP from the amino ketone
hydrochloride salt starting material you used.
Part A: Synthesis of (t)-N,N-dimethyl-3-phenyl-3-(4- trifluoromethylphenoxy)propanamine 1. To the 250-mL round-bottom flask (RBF) containing (t)-3-(dimethylamino)-1-phenylpropanol (product from Lab 6) and a magnetic stir bar, add 4 mL of 4- chlorobenzotrifluoride and 30 mL of dimethylacetamide (DMA) 2. With stirring, add to this mixture 30 mL of 1.0 M potassium tert-butoxide (caustic alkali!) in tert-butyl alcohol using a syringe 3. Using a simple distillation apparatus,...
Need help on providing reactions that describe the acid-base extraction and neutralization processes used in this exper...
Need help on providing reactions that describe the acid-base
extraction and neutralization processes used in this experiment.
Provide a statement of solubility of each starting material and
product.
The experiment to be performed this week involves liquid-liquid extraction using a separatory funnel. Read chapter 15 in Zubrick to familiarize yourself with the use of the glassware for extraction and washing. Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substances that have varying solubility...
For the portion of the procedure shown below, create a flow chart for the acid-base extraction...
For the portion of the procedure shown below, create a
flow chart for the acid-base extraction at the end of the Grignard
Reaction. Start your flow chart with the crude reaction (see below)
mixture before addition of HCl and continue it until the product is
recovered. Depict the desired organic product, in its correct form
at each step of the procedure.
Crude reaction mixture procedure for reference: To
the flask add Mg turnings (120 mg, 4.94 mmol) to the flask...
Create a separation scheme flow chart/diagram to isolate methyl salicylate from a product mixture containing the...
Create a separation scheme flow chart/diagram to isolate methyl salicylate from a product mixture containing the following: Methyl salicylate, methanol, concentrated sulfuric acid. Lab procedure for separation: Extract with 25mL dichloromethane. Drain the bottom organic layer into a beaker. Repeat the extraction with another 25mL portion of dichloromethane, isolate the bottom layer, and then combine it with the first dichloromethane extract. Pour the combined extracts back into the funnel and wash the solution with 25mL of water. Drain the lower...
Attached below are the pages from this lab report to help give
context to the questions. Please be as detailed as possible when
answering the questions and include any relevant information about
intermolecular forces at play. Thank you for your help!
Here are the questions which I need answered. Thank you in
advance for your help! :) Please be as detailed as possible and
discuss any intermolecular forces in detail if they are relevant to
the question. Thanks!
PARTA. SEPARATION...
QUESTION:
Write a flow scheme for the work-up.
THE WORK UP:
C. Work-up (save all layers) and Isolation of Product MgBrCl Benzoic acid Transfer the mixture into a test tube. Rinse the beaker with about 3 mL of regular (not anhydrous) diethyl ether and pour the washings into the test tube. There should be two distinct layers in the test tube Remove the aqueous layer (to be discarded) and shake the ether layer with about 2 mL of 3 M...
Extraction of solids: Experiment outlined below
Draw a “roadmap” of the experiment, containing chemical
structures and “layers” (organic and aqueous). This should contain
the individual reactions occurring in each step, and show which
layer the various components are present. Make sure you think about
whether the acetaminophen, caffeine and aspirin are neutral,
protonated or deprotonated.
Preliminary separation obtain a sample (1.0g) of the mixture. weigh the sample and record it. this sample should consist of a 2:1:1 mixture (by mass)...
Propose another way of synthesizing NMP from the amino ketone
hydrochloride salt starting material you used.
Part A: Synthesis of (t)-N,N-dimethyl-3-phenyl-3-(4- trifluoromethylphenoxy)propanamine 1. To the 250-mL round-bottom flask (RBF) containing (t)-3-(dimethylamino)-1-phenylpropanol (product from Lab 6) and a magnetic stir bar, add 4 mL of 4- chlorobenzotrifluoride and 30 mL of dimethylacetamide (DMA) 2. With stirring, add to this mixture 30 mL of 1.0 M potassium tert-butoxide (caustic alkali!) in tert-butyl alcohol using a syringe 3. Using a simple distillation apparatus,...
Need help on providing reactions that describe the acid-base
extraction and neutralization processes used in this experiment.
Provide a statement of solubility of each starting material and
product.
The experiment to be performed this week involves liquid-liquid extraction using a separatory funnel. Read chapter 15 in Zubrick to familiarize yourself with the use of the glassware for extraction and washing. Acid/Base Extraction Liquid-liquid extraction is a technique that can be used to physically separate two substances that have varying solubility...
For the portion of the procedure shown below, create a
flow chart for the acid-base extraction at the end of the Grignard
Reaction. Start your flow chart with the crude reaction (see below)
mixture before addition of HCl and continue it until the product is
recovered. Depict the desired organic product, in its correct form
at each step of the procedure.
Crude reaction mixture procedure for reference: To
the flask add Mg turnings (120 mg, 4.94 mmol) to the flask...
Most questions answered within 3 hours.
-
Where is the error in this code sequence?
String s1 = "Hello";
String s2 = "ello";...
asked 10 months ago -
Financial data for Joel de Paris, Inc., for last year
follow:
Joel de Paris, Inc.
Balance...
asked 10 months ago -
Consider this reaction:
Al2(SO4)3 (aq)+ BaCl3
(aq) Al2Cl6 (aq)- +
3BaSO4(s) . What is the...
asked 10 months ago -
Suppose that Savneet is considering increasing her
recent random sample from 20 car rentals to 40...
asked 10 months ago -
Trucks arrive at an unloading terminal at an average rate of 120
per hour.
Trucks arrive...
asked 10 months ago -
Why are methanol and ethanol completely soluble in water while
octanol is not very little soluble....
asked 10 months ago -
A facilities manager at a university reads in a research report
that the mean amount of...
asked 10 months ago -
When the CuSO4 is rehydrated by adding water to the anhydrous
compound, is this an endothermic...
asked 10 months ago -
A ray of sunlight is passing from diamond into crown glass; the
angle of incidence is...
asked 10 months ago -
A block of mass 0.249 kg is placed on top of a light, vertical
spring of...
asked 10 months ago -
how do the kidneys compensate in the presences of acidosis
a) trigger hyperventilate
b) reserve acid...
asked 10 months ago -
Question 501 pts
The rental rate of capital to the firm increases. Which of the
following...
asked 10 months ago