Cinnabar (HgS) is the ore of mercury metal (Hg). When reacted in a smelter with gaseous oxygen (O2), cinnabar yields as products pure elemental mercury, plus sulfur dioxide (SO2). Write down and balance the equation for this reaction; then, determine how much elemental mercury can be obtained from 1.00kg of cinnabar, assuming 100% yield from the reaction.

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.