The formula for the complex tris(ethylenediam | vedclass

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(C) $1$. The central metal ion is Cobalt with an oxidation state of $+III$,denoted as $Co^{3+}$.$2$. The ligand is ethylenediamine (en),which is a neu

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$[Co(en)_3]_2(SO_4)_3$

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(C) $1$. The central metal ion is Cobalt with an oxidation state of $+III$,denoted as $Co^{3+}$.$2$. The ligand is ethylenediamine (en),which is a neutral bidentate ligand. The prefix 'tris' indicates there are $3$ such ligands,so the coordination sphere is $[Co(en)_3]^{3+}$.$3$. The counter ion is sulfate,which has a charge of $-2$,denoted as $SO_4^{2-}$.$4$. To balance the charges,we need $2$ units of the complex cation $[Co(en)_3]^{3+}$ and $3$ units of the sulfate anion $SO_4^{2-}$.$5$. Thus,the formula is $[Co(en)_3]_2(SO_4)_3$.

The formula for the complex tris(ethylenediamine)cobalt$(III)$ sulfate is .....

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