Calculate the concentration of free silver ion [Ag^(+) ] in an aqueous solution that is prepared as 0.1 M AgNO_3 and 3.0 M NH_3 ,Ag^(+)(aq) +2 NH_3 (aq) hArr [Ag(NH_3) _2]^(+)(aq) K_(f) = 1.6 xx 10^(7). If answer isx xx 10^(-10)Mthen x= ______?

Calculate the concentration of free silver ion [Ag^(+) ] in an aqueous

1.	Calculate the concentration of free silver ion [Ag^(+) ] in an aqueous solution that is prepared as 0.1 M AgNO_3 and 3.0 M NH_3 ,Ag^(+)(aq) +2 NH_3 (aq) hArr [Ag(NH_3) _2]^(+)(aq) K_(f) = 1.6 xx 10^(7). If answer isx xx 10^(-10)Mthen x= ______?
Answer» Solution :` Ag^(+) +2NH_3 hArr 2NH_3 hArr [Ag(NH_3]_2]^(+) ` ` ([Ag(NH_3)_2]^(+) )/([Ag^(+) ][NH_3]^(2) ) = K_f` ` (0.1)/( [Ag^(+)](3-0.2)^(2)) = 1.6 xx 10^(7) ` ` [Ag^(+) ]= (0.1)/(1.6 xx 10^(-7) xx (2.8) ^(2)) ~~8 xx 10 ^(-10) `