Be sure to answer all parts. tris [tris(hydroxymethyl)aminomethane] is a common buffer for studying biological systems. (ka = 5.01 × 10−9 and pka = 8.3) (a) calculate the ph of the tris buffer after mixing 10.0 ml of 0.15 m hcl solution with 25.0 ml of 0.10 m tris. (b) this buffer was used to study an enzyme-catalyzed reaction. as a result of the reaction, 0.00015 mol of h+ was produced. what is the ph of the buffer at the end of the reaction? (c) what would be the final ph if no buffer were present?

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.