A Solution Contains 0 $\times$ 10^-6)and 0

Multiple Choice

A solution contains 0.250 M HA (K_a = 1.0 $\times$ 10^-6) and 0.45 M NaA.What is the pH after 0.17 mole of HCl is added to 1.00 L of this solution?

A) 0.77
B) 7.82
C) 5.82
D) 1.97
E) 8.18