How much `AgBr` could dissolve in `1.0L` of `0.4M NH_(3)`? Assume that `Ag(NH_(3))_(2)^(o+)` is the only complex formed. Given: the dissociation constant for
`Ag(NH_(3))_(2)^(o+) hArr Ag^(o+) xx 2NH_(3)`,
`K_(d) = 6.0 xx 10^(-8)` and `K_(sp)(AgBr) =5.0 xx 10^(-13)`.

Answer

`2.8 xx 10^(-3)M`