The molecular formula of a cobalt coordinatio | vedclass

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Question

(C) The complex contains $1$ $Co$ atom,$5$ $NH_3$ molecules,$1$ $NO_2$ group,and $2$ $Cl$ atoms. Since $2$ moles of $AgCl$ are precipitated with $AgNO

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$[Co(NH_3)_5(NO_2)]Cl_2$

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(C) The complex contains $1$ $Co$ atom,$5$ $NH_3$ molecules,$1$ $NO_2$ group,and $2$ $Cl$ atoms. Since $2$ moles of $AgCl$ are precipitated with $AgNO_3$,it indicates that $2$ $Cl^-$ ions are present outside the coordination sphere (ionizable). The formula is $[Co(NH_3)_5(NO_2)]Cl_2$. Dissociation: $[Co(NH_3)_5(NO_2)]Cl_2 \rightarrow [Co(NH_3)_5(NO_2)]^{2+} + 2Cl^-$. Total ions produced = $1 + 2 = 3$ moles of ions.

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