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[Co(NH(3))(6)]^(3+) & [CoF(6)]^(3-) both...

`[Co(NH_(3))_(6)]^(3+) & [CoF_(6)]^(3-)` both are complexes of Co(III), but `[Co(NH_(3))_(6)]^(3+)` is diamagnetic while `[Co(F_(6)]^(3-)` is paramagnetic with `mu=4.90 BM`. Explain.

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To explain why the complex \([Co(NH_3)_6]^{3+}\) is diamagnetic while \([CoF_6]^{3-}\) is paramagnetic, we will analyze the electronic configurations, oxidation states, ligand field theory, and magnetic properties of both complexes step by step. ### Step 1: Determine the oxidation state of Co in both complexes 1. For \([Co(NH_3)_6]^{3+}\): - The overall charge of the complex is \(+3\). - Ammonia (\(NH_3\)) is a neutral ligand, contributing \(0\) to the charge. - Therefore, the oxidation state of cobalt (Co) is \(+3\). ...
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