chemistry question need help?

Question

For the coordination compound [Ag(NH3)2]NO3 give the oxidation state of the transition metal followed by the the coordination number.

Answer 1

The previous answerer had the right valence state, but the wrong coordination.

The coordination compound is has no overall charge. That means the positive charge on the Ag ion must be equal to the sum of the charges on the ligands. NH3 has no charge, and NO3- has a minus 1 charge, therefore the charge on the Ag ion must be +1 (oxidation state = +1)

NH3, and NO3- are both monodentate ligands. There are two NH3 ligands in the compound's formula and one NO3-, so the coordination number of the Ag+ ion is 3. This is a trigonal planar complex.

Answer 2

Ox st = +1
Co-ord no = 2