The PH of a Solution of 1 $\times$ 10^-6 and K_a2 is 1

Multiple Choice

The pH of a solution of 1.9 M H₂A (K_a1 = 1.0 $\times$ 10^-6 and K_a2 is 1.0 $\times$ 10^-10) is:

A) 10.00
B) 5.72
C) 11.14
D) 2.86
E) none of these