Consider the following equilibrium:
2CO(g) + O2(g)<--> 2 CO2(g)
Keq= 4.0 * 10^-10
What is the value of Keq for 2CO2(g) <--> 2CO(g) + O2(g)?

Select one:
A. 4.0 * 10^-10
B. 2.5 * 10^9
C. 2.0 * 10^-5
D. 5.0 * 10^4

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.