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Post lab question 1. What can you do if you do not know which layer is...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent is on the bottom of the aqueous phase and which is on top? (write your answer by the solvent name) a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether 2) If you are performing a liquid-liquid extraction and you have a mix of a carboxylic acid and a non-acidic compound, which combination of solvents would you use for the separation? a) dichloromethane/HCI b)...
Experiment 4C Directions Obtain three test tubes, each containing two layers. For each tube, you will...
Experiment 4C Directions Obtain three test tubes, each containing two layers. For each tube, you will be told the identity of the two layers, but you will not be told their relative positions. Determine experimentally which layer is organic and which layer is aqueous. Dispose of all thesemixtures into the waste container designated for halogenated organic wastes. After determining the layers experimentally, look up the densities of the various liquids in a handbook to see if there is a correlation...
K2CO3 1.5 H20 Br он heat 2,3-dibromocinnamic acid trans-1-bromo-2-phenylethene Compound MW mp (C)bp (C) density (g/ml)...
K2CO3 1.5 H20 Br он heat 2,3-dibromocinnamic acid trans-1-bromo-2-phenylethene Compound MW mp (C)bp (C) density (g/ml) mol) 2,3-dibromocinnamic acid 307.97 93-95 (threo) n'a n a 202-204 (erythro)E K CO.1.5H:O1 methylene chloride 138.21 84.93 56.11 891 na n a n'a 39.6 n a n a 1.33 n a 3 MKOH 2. a. What is the by-product formed in this reaction (not shown in given reaction equation)? b. What is the purpose of adding 3 M KOH at the beginning of the...
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will...
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will be added and liquid-liquid extraction will be carried out. Which layer will be the organic (dichloromethane) layer? The density of dichloromethane is 1.33 g/mL. bottom layer depends on the day the middle layer top layer Question 1 (1 point) What class of compound do you always get if you reduce an aldehyde? O 2º alcohol O carboxylic acid ketone 1° alcohol
Answer the following before coming to lab: 1.) Based on what you saw last week, which...
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
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...
Laboratory Date Name TA Experiment 2- Post- lab Questions I. Chloroform and cyclohexane are organic liquids...
Laboratory Date Name TA Experiment 2- Post- lab Questions I. Chloroform and cyclohexane are organic liquids that are insoluble in water (see Table 2.2), and this causes two distinct liquid phases, an organic phase and a water phase, to form when these organic liquids are mixed with water. However, in a chloroform/water mixture, the water phase is on the top and the organic chloroform phase is on the top, whereas in a cyclohexane/water mixture, the water phase is on the...
Explain why the most polar compound layer stays in the organic layer, while the less polar...
Explain why the most polar compound layer stays in the organic layer, while the less polar compounds go into the aqueous phase. (This is for a liquid-liquid extraction) The most polar compund is caffeine and the solvent is ethyl acetate. I know it has to do with the caffeine not being able to deprotonate but I’m still confused and would like more information on why is can’t deprotonate.
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on...
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on the bottoming a extraction us which is on top? (write your answer by the solvent name p a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether a liquid-liquid extraction and you have a 18) (3pts) If you are performing carboxylic acid and a non-acidic compound, which combinat you use for the separation? of solvents a) dichloromethane/HCI b) dichloromethane/methanol c) dicholoromethane/NaOH d) NaOH and...
Construct a flow chart describing the seperation of the mixture and the isolation of each compound...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
1)When you perform a liquid-liquid extraction using a separatory funnel, which of the following organic solvent is on the bottom of the aqueous phase and which is on top? (write your answer by the solvent name) a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether 2) If you are performing a liquid-liquid extraction and you have a mix of a carboxylic acid and a non-acidic compound, which combination of solvents would you use for the separation? a) dichloromethane/HCI b)...
K2CO3 1.5 H20 Br он heat 2,3-dibromocinnamic acid trans-1-bromo-2-phenylethene Compound MW mp (C)bp (C) density (g/ml) mol) 2,3-dibromocinnamic acid 307.97 93-95 (threo) n'a n a 202-204 (erythro)E K CO.1.5H:O1 methylene chloride 138.21 84.93 56.11 891 na n a n'a 39.6 n a n a 1.33 n a 3 MKOH 2. a. What is the by-product formed in this reaction (not shown in given reaction equation)? b. What is the purpose of adding 3 M KOH at the beginning of the...
Question 7 (1 point) To extract the reaction product from the aqueous reaction mixture, dichloromethane will be added and liquid-liquid extraction will be carried out. Which layer will be the organic (dichloromethane) layer? The density of dichloromethane is 1.33 g/mL. bottom layer depends on the day the middle layer top layer Question 1 (1 point) What class of compound do you always get if you reduce an aldehyde? O 2º alcohol O carboxylic acid ketone 1° alcohol
Answer the following before coming to lab: 1.) Based on what you saw last week, which enantiomer of tartaric acid would you expect to co- crystallize with (SS)-1,2-diammoniumcyclohexane? 2.) If you had a neutral aqueous solution of triethylamine, would you add acid or base in order to extract it with an organic solvent? 3.) Now, consider a dichloromethane solution of triethylamine. Would you extract with acidic aqueous or basic aqueous solution in order to get the triethylamine out of the...
Laboratory Date Name TA Experiment 2- Post- lab Questions I. Chloroform and cyclohexane are organic liquids that are insoluble in water (see Table 2.2), and this causes two distinct liquid phases, an organic phase and a water phase, to form when these organic liquids are mixed with water. However, in a chloroform/water mixture, the water phase is on the top and the organic chloroform phase is on the top, whereas in a cyclohexane/water mixture, the water phase is on the...
(4pts) When you perform a liquid-liquid ext 17) which of the following organic solvent is on the bottoming a extraction us which is on top? (write your answer by the solvent name p a) Ethyl acetate b) hexane c) Dichloromethane d) diethyl ether a liquid-liquid extraction and you have a 18) (3pts) If you are performing carboxylic acid and a non-acidic compound, which combinat you use for the separation? of solvents a) dichloromethane/HCI b) dichloromethane/methanol c) dicholoromethane/NaOH d) NaOH and...
Construct a flow chart describing the seperation of the
mixture and the isolation of each compound in this experiment. (Lab
steps/procedures includes for reference)
4. Construct a flow chart describing the separation of the mixture and the isolation of each compound in this experiment. A commonly used method of separating a mixture of organic compounds is known as liquid-liquid extraction. Most reactions of organic compounds require extraction at some stage of product purification. In this experiment you will use extraction...
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