(3pts.) Why is acetic acid an appropriate solvent in which to perform rate studies of electrophilic brominations. EAS bromination lab.
(3pts.) Why is acetic acid an appropriate solvent in which to perform rate studies of electrophilic...
In electrophilic aromatic substitution lab, acetic acid is used as a catalyst for the electrophilic substitution on aromatic rings. Would this catalyst work with nitrobenzene? Explain your answer.
Chromatography of Amino Acids:- 1. Considering that the solvent contains acetic acid, explain why Glu moves further up the TLC plate than Lys.
Predict which solvent will have the greatest effect on the pKa of acetic acid: 1-butanol or 2-butanol. Please justify your answer.
3. If acetic acid is not added to the TLC solvent, what effect would you predict that this would have on the Rf of ibuprofen? Why? 4. What are the four characteristics on an inflammatory response?
H3PO4 OH + OH OH salicylic acid acetic anhydride acetic acid acetylsalicylic acid (aspirin) 1. Why is it better to perform acetylation with acetic anhydride rather than using a Fischer esterification with acetic acid? 2. Draw a complete arrow-pushing mechanism for the reaction. 3. When an old sample of aspirin is left in moist conditions, it will begin to smell like vinegar. Draw a reaction scheme and briefly explain what happened.
(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...
Which acid is stronger, acetic acid (pKa = 4.75) or citric(II) acid (pKa = 4.74)? Why?
4-chloro-2-methyl-2-pentene reacts with acetic acid (solvent), two substitution products are urmea, with the rearranged product predominating as shown in the diagram that follows. When small amounts of acetate ion are added to the reaction mixture, no increase in the rate is observed. Propose a mechanism that accounts for these results. Explain clearly why two products are formed (5 points) Minor Major
Is Sulfuric Acid a hydroxylic or polar aprotic solvent? In Sulfuric Acid, which is a better nucleophile? Cl- or Br-? Why? And is DMSO a hydroxylic or polar aprotic solvent? In DMSO, which is the better nucleophile? Cl- or Br-? Why?
what is the purpose of the acid catalyst: sulfuric acid? why
cant acetic acid, which is already being used, serve in the same
capacity? show mechanism of the reaction
H+ R-C-OH + carboxylic acid (excess) R2-OH alcohol + HO Ric-o-R₂ an ester The general reaction scheme for a Fischer esterification is shown above. Using the combination of acetic acid and either isopentanol AND n-propanol you will synthesize two fruity-smelling esters. The hydronium source that will catalyze this reaction is sulfuric...