A 0.0020 m aqueous solution of a ionic compound $Co{\left(N{H}_3\right)}_{5}N{O}_2$  freezes at  $-{0.00732}^{\text{o}}\text{C}$  what will be the number of moles of ions which 1 mol of ionic compound produces  $(K_f={1.86}^{\text{o}}\text{C/m})$. (round of to the nearest integer)