Question

Find the number of ions formed when Tetraamminecopper(II) sulfate is dissolved in water.

Answer 1

The number of ions formed when Tetraamminecopper(II) sulfate is dissolved in water is 2. It gives one complex cation and one anion which is present outside the coordination sphere.

The reaction is:
[Cu(NH${}_3$)${}_4$]SO${}_4$ $\rightleftharpoons$ [Cu(NH${}_3$)${}_4$]${}^{2+}$ + SO${}_4^{2-}$