A coordination complex compound of cobalt has | vedclass

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Question

(A) The molecular formula is $Co(NH_3)_5(NO_2)Cl_2$. When this complex is dissolved in water,it dissociates to produce $3$ moles of ions. The reaction

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

Vedclass · Answer

(A) The molecular formula is $Co(NH_3)_5(NO_2)Cl_2$. When this complex is dissolved in water,it dissociates to produce $3$ moles of ions. The reaction with excess $AgNO_3$ confirms the presence of $2$ chloride ions outside the coordination sphere. The dissociation is: $[Co(NH_3)_5(NO_2)]Cl_2(aq) 	o [Co(NH_3)_5(NO_2)]^{2+}(aq) + 2Cl^-(aq)$. Thus,the correct formula is $[Co(NH_3)_5(NO_2)]Cl_2$.

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