A 15.0 cm cube of sodium metal (density = 0.968 g/ml) is thrown into an acidic lake equivalent to a buffer of 5.00 x10-4 M acetic acid and 8.00 x10-4 M sodium acetate. The lake is 50.0 m across and can be thought of as half of a sphere. The sodium generates sodium hydroxide and hydrogen gas when it reacts with water. The sodium hydroxide in turn, reacts with the buffer.
a. Write the redox equation(s) for the applicable reaction(s) and indicate what is oxidized, reduced, OA,RA, along with oxidation states.
b.Write balanced acid-base equation(s) for the applicable reaction(s) and indicate the acid, base and conjugates.
c. What is the initial pH? What is the pH of the lake after the intervention?
d. What volume of hydrogen gas is collected over water at -9 ºC and 1.023 atm?