Chemistry - Liquid Solution Question with Solution | TestHub

A cobalt(III) ammine chloride complex ${\mathrm{CoCl}}_3\cdot {\mathrm{xNH}}_3$ is prepared as a $0.05\mathrm{M}$ aqueous solution. The solution shows a depression in freezing point of $0.279^{\circ }\mathrm{C}$.

Assuming $100\%$ ionization, density $\approx 1\mathrm{g}\mathrm{m}{\mathrm{L}}^{-1}$, and coordination number of $\mathrm{Co}=6$, identify the complex. (Given: $K_{\mathrm{f}}=1.86\mathrm{K}\mathrm{kg}\mathrm{mo}{\mathrm{l}}^{-1}$)