Homework Answers
4)The asprin drug is usually in combination with acetaminophen and caffeine in the tablets.The major principle behind the separation of asprin drug from the remaining components is solvent extraction process and filtartion process.The seperation is based upon the difference in the solubilities of the components in different solvents.At first acetaminophen is seperated from the remaining two components by dissolving the tablet in dichloromethane and then filtered off.
Then after,from the dichloromethane solvent with the remaining two components asprin and caffeine are seperated by using either acid or base as a solvent which seperated one of the components and the left over drug can be filtered off.So the main principles behind the seperation of asprin drug from acetaminophen and caffeine,mass transfer operations like Solvent Extraction and Filtration methods.
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Analysis of Panacetin - prelab
4. How is aspirin separated from the other compounds? 5. What...
Analysis of Panacetin - prelab 1. Why are some safety precautions you should take for this...
Analysis of Panacetin - prelab
1. Why are some safety precautions you should take for this experiment? 2. What is Panacetin composed of? 3. How will sucrose be separated from the other compounds?
PRELAB EXERCISE EXPERIMENT 21 Synthesis of Aspirin (Acetylsalicylic Acid) 1. What is the purpose of sulfuric...
PRELAB EXERCISE EXPERIMENT 21 Synthesis of Aspirin (Acetylsalicylic Acid) What is the purpose of sulfuric acid or phosphoric acid used in the acetylation reaction? Use equations to explain this purpose. The procedure calls for cautious addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reaction involved.Using the quantities of salicylic acid and acetic anhydride...
Group IV, The Carbonate Group PRELAB NAME: 1. How is the Ba separated from Ca?? 2....
Group IV, The Carbonate Group PRELAB NAME: 1. How is the Ba separated from Ca?? 2. What test is used to confirm the presence of calcium? 3. If small amounts of Ba?' and Ca' remain in S14, how will the test for Mgt be affected? 4. Which of the following is the most soluble: MgCO3, CaCO3, or BaCO,?
1) In the lab of synthesis of aspirin, how will adding HCl instead of phosphoric acid...
1) In the lab of synthesis of aspirin, how will adding HCl instead of phosphoric acid affect the outcome of the experiment. 2) In the lab of synthesis of aspirin, what is the purpose of using KMnO4 solution? 3) Suggest 2 other ways(besides use of hickman still) that you can use to influence the direction of reaction equilibrium in the lab dehydration of alcohol to alkenes 4) How will the absence of hickman still affect the outcome of the experiment...
Recrystallization Experiment Postlab Questions 1. Calculate the percent recovery of benzoic acid and aspirin. 2. What...
Recrystallization Experiment Postlab Questions 1. Calculate the percent recovery of benzoic acid and aspirin. 2. What are some of the properties of an ideal recrystallization solvent? 3. Why is ice cold solvent used to rinse the purified crystals? 4. If the hot solution were immediately placed in an ice water bath during the recrystallization process instead of first cooling to room temperature, how might this affect the results?
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during...
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during thin layer chromatography. Do not explain how to perform TLC; in other words do not explain the procedure. 2. Explain the purpose of the UV lamp in this experiment. 3. Why must you use pencil, not pen, when you make marks on the TLC plate? How do you know? Be sure to 4. Which substances were in the OTC pain reliever? discuss your Rr...
This is a post-lab question of the Recrystallization of Aspirin experiment. This is related to organic...
This is a post-lab question of the Recrystallization of Aspirin experiment. This is related to organic chemistry. Please be detailed, thank you! Given the table for solubility of compounds X and Y in solvent Z. If 2.00 grams of impure compound X (contaminated by 12.0% Y by weight) is recrystallized from 25.0mL of solvent Z, what will be the purity of recrystallized X? Solubility per 100 g of Solvent Z Compound 20℃ 80℃ X 1.0 g 8.0 g Y 0.70...
pre lab Experiment 23/ Oxidation-Reduction TiHration 207 Prelab Name Section Oxidation-Reduction Titration I. What does it...
pre
lab
Experiment 23/ Oxidation-Reduction TiHration 207 Prelab Name Section Oxidation-Reduction Titration I. What does it mean to standardize the KMnO, solution? 2. In the titration reaction, which substance is a. reduced? b. axidized? 3. What is the mole ratio of Mno,/C,O in the chemical reaction in this experiment? 4. What is the purpose of the 3 M H,S0, solution? What is the purpose of the manganese(ID) sulfate? 5. Why is it necessary to titrate slowly in this experiment?
the mass of thr aspirin is on the first page. REPORT SHEET Aspirin and Other Analgesics...
the
mass of thr aspirin is on the first page.
REPORT SHEET Aspirin and Other Analgesics LAB 17 A. Preparation of Aspirin 1. Mass of flask 2. Mass of flask and salicylic acid 81.515g 83.5172 55.313 g 57,25g 3. Mass of watch glass 4. Mass of watch glass and aspirin product Calculations 5. Mass of salicylic acid 2g 6. Maximum theoretical yield of aspirin (Show calculations.) 7. Mass of aspirin 8. Percent yield of aspirin (Show calculations.) Copyright © 2014...
Pre-lab Assignment: Synthesis of Aspirin 1. What is the chemical name for aspirin? 2. How does...
Pre-lab Assignment: Synthesis of Aspirin 1. What is the chemical name for aspirin? 2. How does aspirin work in the human body? 3. What is the name of the compound that was isolated from the bark of the willow and had a similar effect as aspirin? 4, what is a common side effect of the compound from #4? 5. Draw and label the complete setup to perform vacuum filtration. 6. What is the theoretical yield for aspirin if you start...
Analysis of Panacetin - prelab
1. Why are some safety precautions you should take for this experiment? 2. What is Panacetin composed of? 3. How will sucrose be separated from the other compounds?
PRELAB EXERCISE EXPERIMENT 21 Synthesis of Aspirin (Acetylsalicylic Acid) What is the purpose of sulfuric acid or phosphoric acid used in the acetylation reaction? Use equations to explain this purpose. The procedure calls for cautious addition of water to the reaction mixture while it is still hot. What purpose does the addition of water serve and why should the addition be done while the reaction mixture is hot? Provide an equation for the reaction involved.Using the quantities of salicylic acid and acetic anhydride...
Group IV, The Carbonate Group PRELAB NAME: 1. How is the Ba separated from Ca?? 2. What test is used to confirm the presence of calcium? 3. If small amounts of Ba?' and Ca' remain in S14, how will the test for Mgt be affected? 4. Which of the following is the most soluble: MgCO3, CaCO3, or BaCO,?
Recrystallization Experiment Postlab Questions 1. Calculate the percent recovery of benzoic acid and aspirin. 2. What are some of the properties of an ideal recrystallization solvent? 3. Why is ice cold solvent used to rinse the purified crystals? 4. If the hot solution were immediately placed in an ice water bath during the recrystallization process instead of first cooling to room temperature, how might this affect the results?
QUESTIONS 1. In your own words, explain how the components of a mixture are separated during thin layer chromatography. Do not explain how to perform TLC; in other words do not explain the procedure. 2. Explain the purpose of the UV lamp in this experiment. 3. Why must you use pencil, not pen, when you make marks on the TLC plate? How do you know? Be sure to 4. Which substances were in the OTC pain reliever? discuss your Rr...
pre
lab
Experiment 23/ Oxidation-Reduction TiHration 207 Prelab Name Section Oxidation-Reduction Titration I. What does it mean to standardize the KMnO, solution? 2. In the titration reaction, which substance is a. reduced? b. axidized? 3. What is the mole ratio of Mno,/C,O in the chemical reaction in this experiment? 4. What is the purpose of the 3 M H,S0, solution? What is the purpose of the manganese(ID) sulfate? 5. Why is it necessary to titrate slowly in this experiment?
the
mass of thr aspirin is on the first page.
REPORT SHEET Aspirin and Other Analgesics LAB 17 A. Preparation of Aspirin 1. Mass of flask 2. Mass of flask and salicylic acid 81.515g 83.5172 55.313 g 57,25g 3. Mass of watch glass 4. Mass of watch glass and aspirin product Calculations 5. Mass of salicylic acid 2g 6. Maximum theoretical yield of aspirin (Show calculations.) 7. Mass of aspirin 8. Percent yield of aspirin (Show calculations.) Copyright © 2014...
Pre-lab Assignment: Synthesis of Aspirin 1. What is the chemical name for aspirin? 2. How does aspirin work in the human body? 3. What is the name of the compound that was isolated from the bark of the willow and had a similar effect as aspirin? 4, what is a common side effect of the compound from #4? 5. Draw and label the complete setup to perform vacuum filtration. 6. What is the theoretical yield for aspirin if you start...
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