What is the total number of donor atoms in $[Co(H_2O)(NH_3)_5]I_3$?

One mole of the coordination compound $Co(NH_3)_5Cl_3$ gives $3$ moles of ions upon dissolution in water. Furthermore,one mole of this complex reacts with $2$ moles of $AgNO_3$ solution to produce $2$ moles of $AgCl(s)$. The structure of the complex is:

Which complex among the following gives a white precipitate on treatment with an aqueous solution of barium chloride?

Identify the anionic sphere complex from the following.

On treatment of $10 \ mL$ of $1 \ M$ solution of the complex $CrCl_3 \cdot 6H_2O$ with excess of $AgNO_3$,$4.305 \ g$ of $AgCl$ was obtained. The complex is

How many ions are produced in the solution of the compound $[Co(NH_3)_6]Cl_3$?