In a lab, we seperated Excedrin (paracetamol, acetylsalicylic acid, caffeine, and binder). First we dissolved the...
In a lab, we seperated Excedrin (paracetamol, acetylsalicylic acid, caffeine, and binder). First we dissolved the powder in diethyl ether. This seperated the mixture into caffeine/acetylsalicylc acid and binder/paracetamol. K2HPO4 was added to the caffeine/acetylsalicylic acid. Give the reaction mechanism for K2HPO4 + caffeine and K2HPO4 + acetylsalicylic acid. HCl was then added to K2HPO4 + acetylsalicylic acid. Give this reaction mechanism.
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In a lab, we seperated Excedrin (paracetamol, acetylsalicylic
acid, caffeine, and binder). First we dissolved the...
Show structure and cleavage of each step. In a lab, we seperated Excedrir (paracetamol, acetylsalicylic acid,...
Show structure and cleavage of each step. In a lab, we seperated Excedrir (paracetamol, acetylsalicylic acid, caffeine and binder). First we dissolved the powder in diethyl ether. This seperated the mixture into caffeine/acetylsalicylc acid and binder/paracetamol. K2HPO4 was added to the caffeine/acetylsalicylic acid. K2HPO41+ caffeine was washed with 1) NaCl and then dried with 2) anhydrous sodium sulphate. Give the reaction mechanism for 1) and 2)
Okay, so we had solid benzoic acid, ethyl 4- aminobenzoate, and 9-fluorenone all dissolved in diethyl...
Okay, so we had solid benzoic acid, ethyl 4- aminobenzoate, and 9-fluorenone all dissolved in diethyl ether (4ml). We separated the basic component by adding 3M HCl, we separated the acidic component by adding 3M NaOH. I don't understand what happens here. To isolate the acidic solution, we added 6 M NaOH and used the vacuum to recover the solid. To isolate the basic solution we added 6M HCl. Here are the questions I am having trouble with... • Why...
The Separation of Three Organic Compounds by Acid, Base Reactions and Liquid, Liquid Extraction. Okay, so...
The Separation of Three Organic Compounds by Acid, Base Reactions and Liquid, Liquid Extraction. Okay, so we had solid benzoic acid, ethyl 4- aminobenzoate, and 9-fluorenone all dissolved in diethyl ether. We separated the basic component by adding 3M HCl, we separated the acidic component by adding 3M NaOH. I don't understand what happens here. To isolate the acidic solution, we added 6 M NaOH and used the vacuum to recover the solid. To isolate the basic solution we added...
An unknown mixture (dissolved in diethyl ether) contains only 2 of the following : benzoic acid,...
An unknown mixture (dissolved in diethyl ether) contains only 2 of the following : benzoic acid, phenol, aniline and napthalene. You use the acid-base extraction method and want to identify the 2 compounds in your original mixture. 1) To separate the organic acid you add NaOH and to separate the organic base you add HCl.In both cases these extractions are followed by extractions with water. Why do we add water? Why is this step important? (A clear explanation please). 2)When...
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...
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity...
Organic Chemistry Lab question In the experiment we did acid-base extractions to find impurities. The impurity was either benzoic acid (acid) or 4-chloroaniline (base) So in this experiment we did Acid-Base extraction with an unknown compound. So we had an unknown of 0.150 grams and mixed it with 20 mL of diethyl ether. We placed this in a separatory funnel and added 2mL of 1.0 NaOH solution to the separatory funnel and placed the stopper over the top of the...
2. Was benzene present as a side product in the GC? If so, try to identify...
2. Was benzene present as a side product in the GC? If so, try to identify it (there is likely no standard for comparison in our lab facility because of benzene's toxicity). 3. What steps were taken to keep the system water free? Name each precaution taken. 139 4. Illustrate the mechanism for the desired reactions pas electrons. 5. How does your IR compare with the standard library match? 6. Why is THF a better solvent than diethyl ether for...
i need help with post questions, thanks Product Isolation After stirring the reaction for 5 minutes...
i need help with post questions, thanks
Product Isolation After stirring the reaction for 5 minutes and allowing the reaction mixture to cool (the reaction can be exothermic), remove the Claisen head from the conical vial. Slowly add 3 M HCl(aq) drop-wise. The solid may need to be broken up with a stirring rod or a pipet. Continue to add acid until the aqueous phase (bottom layer) tests positive with pH paper. Extractions can be done using the conical funnel...
The Separation of Three Organic Compounds by Acid, Base Reactions and Liquid, Liquid Extraction. Okay, so...
The Separation of Three Organic Compounds by Acid, Base Reactions and Liquid, Liquid Extraction. Okay, so we had solid benzoic acid, ethyl 4- aminobenzoate, and 9-fluorenone all dissolved in methyleene chloride. We separated the basic component by adding 3M HCl, we separated the acidic component by adding 3M NaOH. I don't understand what happens here. To isolate the acidic solution, we added 6 M NaOH and used the vacuum to recover the solid. To isolate the basic solution we added...
Preparation of Benzoic Acid using a Grignard Reagent URGENT 1. During your Grignard formation, a small...
Preparation of Benzoic Acid using a Grignard Reagent URGENT 1. During your Grignard formation, a small amount of benzene is formed. Provide a brief explanation and mechanism to explain this observation. 2. During your Grignard formation, a small amount of biphenyl is formed. Provide a brief explanation and mechanism to explain this observation. 3. What mass of water would be required to destroy the phenylmagnesium bromide that you prepared in this experiment? What volume does this represent? 4. Why is...
Show structure and cleavage of each step. In a lab, we seperated Excedrir (paracetamol, acetylsalicylic acid, caffeine and binder). First we dissolved the powder in diethyl ether. This seperated the mixture into caffeine/acetylsalicylc acid and binder/paracetamol. K2HPO4 was added to the caffeine/acetylsalicylic acid. K2HPO41+ caffeine was washed with 1) NaCl and then dried with 2) anhydrous sodium sulphate. Give the reaction mechanism for 1) and 2)
2. Was benzene present as a side product in the GC? If so, try to identify it (there is likely no standard for comparison in our lab facility because of benzene's toxicity). 3. What steps were taken to keep the system water free? Name each precaution taken. 139 4. Illustrate the mechanism for the desired reactions pas electrons. 5. How does your IR compare with the standard library match? 6. Why is THF a better solvent than diethyl ether for...
i need help with post questions, thanks
Product Isolation After stirring the reaction for 5 minutes and allowing the reaction mixture to cool (the reaction can be exothermic), remove the Claisen head from the conical vial. Slowly add 3 M HCl(aq) drop-wise. The solid may need to be broken up with a stirring rod or a pipet. Continue to add acid until the aqueous phase (bottom layer) tests positive with pH paper. Extractions can be done using the conical funnel...
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