(a) A compound with formula RuCl3.5H2O is dissolved in water, forming a solution that is approximately the same color as the solid. Immediately after forming the solution, the addition of excess AgNO3(aq) forms 2 mol of solid AgCl per mole of complex. Write the formula for the compound, showing which ligands are likely to be present in the coordination sphere.
(b) After a solution of has stood for about a year, addition of AgNO3(aq) precipitates 3 mol of AgCl per mole of complex. What has happened in the ensuing time?