An alkaline battery produces electrical energy according to the following equation. Zn(s) + 2 MnO2(s) + H2001) — Zn(OH)2(s) + Mn2O3(s)
(a) Determine the limiting reactant if 12.0 g Zn and 48.5 g MnO2 are used. (Type your answer using the format CH4 for CH4.)
(b) Determine the mass of Zn(OH)2 produced.

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.