Chemistry / Formation Constant
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Solution: Which reaction below corresponds to the K f for Co(NH3)42+: ...

Question

Which reaction below corresponds to the K f for Co(NH3)42+:

            A.  Co2+(aq) + 4 NH3(aq) → Co(NH3)42+(aq)

            B.  Co(s) + 4 NH3+(aq) → Co(NH3)42+(aq)

            C.  Co(NH3)42+(aq) → Co2+(aq) + 4 NH3(aq)

            D. Co(NH3)42+(aq) → Co(s) + 4 NH3+(aq)

            E. Co(NH3)42+(aq) + 4 H2O(l) → Co(NH4)42+(aq) + 4 OH(aq)