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1. discuss the reaction of ethanal in schiff'test. briefly explain.
2. discuss and breifly explain about the test of the reaction of KMnO4 with,
i) Methanal
ii) Ethanal
iii) Propananone
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- TLC, a powerful analytical tool, can be used to monitor the progress of reactions. The synthesis of ethyl-3-coumarincarboxylate can be monitored by TLC by displaying the starting aldehyde 1, and coumarin product 2, which have very distinct Rf values (Hint: Think about the polarity of compounds 1 and 2 in terms of their abilities to H-bonds to silica gel). What can be determine about the progress of the reaction from analysis of the TLC shown below?Q1: Give one lysis buffer that is commonly used for western blotting experiments and include its components Q3: To make sure that you used a similar amount of samples, what important step should be done before proceeding the electrophoresis stage? Q4. Why is it necessary to store the prepared lysates in a very low temperature?Write a summarization for preparation of p-Nitroaniline experiment in hierarchy details.
- After completing the synthesis and purification of 4-t-butylcyclohexene, a few drops of the product were mixed with 1 drop of NaOH and 3 drops of KMnO4, as shown in the image. Identify with the name and structure of the brown precipitate (sediment, sludge) shown in the imageIn the grignard reaction, what solvents would you recommend if THF was not available. Draw their chemical structures (at least two solvents must be given).Sodium hydroxide was used to help separate benzoic acid and fluorenone because deprotonated benzoic acid (sodium benzoate) favorably partitions into the aqueous phase (and fluorenone does not). Would this procedure have worked without the sodium hydroxide (using simply neutral water)? Why or why not?
- When 37 is solvolyzed in trifluoroacetic acid approximately equimolar amounts of 38 and39 are obtained. Only 4 percent 40 is formed. Is this evidence for or against bridging byhydrogen?When these two compounds are subjected to iodination like how vanillin is subjected to iodination, predict the products that could be formed. Need help please.Assuming you are a chemist and you need to extract ethanolic acid in a benzene solution. Propose and briefly discuss how to extract the ethanolic acid in the benzene solution. Include the reactions involved in each step, if any.
- 1 a) Provide a detailed experimental report for the preparation, analysis and results (Theoretical and percent yield calculations etc) that you will need to employ for the preparation of 2 grams of para nitroacetanilde from 2 grams of acetanilide. b) Include amounts of any other reagents that are needed, safety precautions that should be followed for the synthesis.Supply the product for the coupling between 1-naphthol and the diazonium salt from sulfanilic acid. Explain briefly.Acetanilide can be prepared via nucleophilic acyl substitution reaction of aniline and acetic anhydride. David having prepared acetanilide , recognized that his melting point was depressed because of impurities in his acetanilide sample. In order to obtain pure sample for better analysis he decided to purify by crystallization. Briefly outlined the method David should use in determining an appropriate recrystallizing solvents