1. . How many atoms of Oxygen (O) are in 66.0 grams of the gas CO2?
a. 3.01 X 1023
b. 6.02 X 1023
c. 9.03 X 1023
d. 1.204 X 1024
e. 1.806 X 1024

2. How many atoms of carbon (C) are in 66.0 grams of the gas CO2?
a. 3.01 X 1023
b. 6.02 X 1023
c. 9.03 X 1023
d. 1.204 X 1024
e. 1.806 X 1024

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.