... FeSCN2+ 10 +3,03FeF3 + SCN - FeSCN2++ 3F - K = 10 -1 0, 070,5 đC 5 .10 -3 5 .10 -2 0,485[ ] (5 .10 -3 -x) (5 .10 -2 -x) x 0,485+3x3 10, 073 2x(0,485 3x) 10 (5 .10 x)(5 .10 x)−− −+⇒ ... 213,164(2x) 10 (5, 0 .10 x)−−⇒ =− x = 5 .10 - 4 2x = 42381613410x 5101 010x5−−−−<=,,.0,5 đVậy: + -8 ,23 93 2[Ag(NH ) ]=2x =10 5, 9 .10 M−=2+ -4 3 4[Cu(NH ) ]=5,0 .10 M 0.5đ ... đ1,0 .10 -3 5,0 .10 -4 TPGH: 23 4Cu(NH )+: 5,0 .10 -4 M ; 33NH :1, 0 2 .10 1, 0M−− ≈Cân bằng Cu(NH3)42+ + 2Ag 2Ag(NH3)2+ + Cu 10 - 13,16 C 5,0 .10 -4 [ ]5,0 .10 -4 -x 2x 213,164(2x) 10 (5,...