a) Although it might not be the best choice, a student prepares a buffer using HN3 and NaN3 solutions. Find the approximate pH of the solution s/he made by mixing 0.150L of 0.800M HN3 with 0.200L of 0.25 M N3^- (the sodium ion is omitted for clarity).
b) Find the initial pH of a 0.200 M HN3 solution
c) Find the pH when 0.200L of 1.00 M NaOH has been added to 0.500L of 0.200 M HN3 solution.
d) Find the pH after 1.00L of 0.100 M NaOH has been added to 0.500L of 0.200M HN3 solution