Consider the titration of 50.0 mL of 0.327 M weak base (x×10−6) with 0.340 M HNO₃. What is the pH of the solution before any strong acid has been added?
a) 8.37; 3.72
b) 11.63; 7.18
c) 7.14; 3.72
d) 9.75; 3.01