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Discuss the importance of the major steps in the aspirin synthesis, melting point determination, and ferric chloride test.
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- 1. What was the purpose of the concentrated sulfuric acid in the first step in the synthesis of aspirin? 2. What was the purpose of performing titration analysis on the product aspirin synthesized? 3. If the synthesized aspirin was not dried before melting point determination, what would be its effect?How to get potassium hydroxide from potassium iodide? Give a detailed explanation of the methods used in the process of separation.ORANGE II SYNTHESIS Describe the recrystallization process of the Orange II dye in 95% ethanol. (List the procedures)
- how do you account for the formation of precipitates in test for purines ?Provide a brief justification for the following procedures in drug production. 1.Storing magnesium citrate in the refrigerator. 2. Filtering solution while its hot. 3. Cooled purified water in preparing calcium hydroxide solution. 4. Sterilization of materials for syrup preparation. 5. Addition of potassium iodide in Lugol’s solution.In the aspirin synthesis experiment, what is the reason for using as little ethanol as possible to dissolve the crude product before recrystallization?
- assuming that charcoal and sugar are the main impurities in a sample of crude acetanilide explain how recrystallization from water would remove each.Why is the titration done with vigorous swirling?Studies indicate that freshly ground cinnamon stick will contain at most 31.5 milligrams of cinnamaldehyde per gram of cinnamon. Given this information, how many grams of cinnamon would be required to precipitate 5.0 grams of silver using Tollens' Test?
- Write the Method used in recrystallisation of benzoic acid, azobenzene, and p-nitroaniline.Illustrate the chemical reaction on the use of sodium bicarbonate in the purification of isoamyl acetate(extraction, reactive extraction, recrystallization). Write a few sentences for each technique explaining them