Mobility of coordinate complex ions

Conductivity of ions depend on mobility of ions, but I doubt if a Coordinate complex formed can affect the mobility of that ion.
Let's say we have AgNO3 dissolved in Ammonia water. How can we compare mobility and Ion Transport number of Ag+ in Water and in NH3-water, so that {Ag(NH3)2}+ complex is formed.
I think Mobility is decreased due to complex formation.


