A. draw the structure of the tetrahedral intermediate initially formed in the reaction shown. you do not have to consider stereochemistry. do not include counter-ions, e. g., na+, i-, in your answer. in cases where there is more than one answer, just draw one. move clear erase undo redo increase scale decrease scale copy paste set label more labels attributes more attributes single bond recessed bond protruding bond double bond other bond more bonds cyclohexane ring benzene ring other ring more rings bracket b. draw the structures of the final acyl transfer products obtained.

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.