You have 100ml of 1M Glycine (total Glycine) and you want to make a buffer at pH = 3.2. Assuming normal pKa values for amino acids, which functional group would be relevant for this buffer, and how much Glycine in the unprotonated versus protonated state would you need? (HINT: what is the ratio of unprotonated versus protonated at pH = 3.2?)
a. Amine, 9mM B / 91mM BH+b. Amine, 91 mM B / 9mM BH+c. Acid, 9mM A- / 91mM HAd. Acid, 91mM A- / 9mM HA

Answer asap need to be answered 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.