試題詳解

14. What is the pH of a solution prepared by mixing 50.0 mL of 0.300 M HCl with 450.0 mL of 0.400 M HIO₃ ? (K_a of HIO₃ = 0.16)
(A)1.52
(B)0.80
(C)0.72
(D)0.89
(E)1.10