14. Calculate the [H+] in a 0.010 M solution of HCN, Ka = 6.2 x 10–10. (A) 1.0 x 10–7 M (B) 2.5 x 10–6 M (C) 3.6 x 10–3 M (D) 6.2 x 10–10 M (E) 2.5 x 10–5 M

23. Which of the following statements is true about the octahedral complexes of Ni2+? (A) Both strong- and weak-field complexes are paramagnetic. (B) The strong-field complex is paramagnetic and the weak-field complex is diamagnetic. (C) Both strong- and weak-field complexes are diamagnetic. (D) The strong-field complex is diamagnetic and the weak-field complex is paramagnetic. (E) none of these

14. Calculate the [H+] in a 0.010 M solution of HCN, K_a = 6.2 x 10^–10.
(A) 1.0 x 10^–7 M
(B) 2.5 x 10^–6 M
(C) 3.6 x 10^–3 M
(D) 6.2 x 10^–10 M
(E) 2.5 x 10^–5 M

相關試題

相關試卷

14. Calculate the [H+] in a 0.010 M solution of HCN, Ka = 6.2 x 10–10.(A) 1.0 x 10–7 M(B) 2.5 x 10–6 M(C) 3.6 x 10–3 M(D) 6.2 x 10–10 M(E) 2.5 x 10–5 M

相關試題

相關試卷

14. Calculate the [H+] in a 0.010 M solution of HCN, K_a = 6.2 x 10^–10.
(A) 1.0 x 10^–7 M
(B) 2.5 x 10^–6 M
(C) 3.6 x 10^–3 M
(D) 6.2 x 10^–10 M
(E) 2.5 x 10^–5 M