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Fe(II) Forms the Complex Ion [Fe(OH)4]2− Through Equilibrium Reactions in Which

Question 65

Multiple Choice

Fe(II) forms the complex ion [Fe(OH) 4]2− through equilibrium reactions in which hydroxide replaces water in a stepwise manner. If log K1 = 6.89, log K2 = 5.42, log K3 = −0.36, and log K4 = −1.78, what is its Kf?


A) 8.5×1042
B) 6.8×1040
C) 2.1×1041
D) 1.2×1040
E) 4.5×1041

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