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Formation Constants for Complex Ions
Equilibrium K f
Al 3+ + 6 F [ AlF 6 ] 3− 7 × 10 19
Cd 2+ + 4 NH 3 [ Cd ( NH 3 ) 4 ] 2 + 1.3 × 10 7
Cd 2+ + 4 CN [ Cd ( CN ) 4 ] 2− 3 × 10 18
Co 2+ + 6 NH 3 [ Co ( NH 3 ) 6 ] 2+ 1.3 × 10 5
Co 3+ + 6 NH 3 [ Co ( NH 3 ) 6 ] 3+ 2.3 × 10 33
Cu + + 2 CN [ Cu ( CN ) 2 ] 1.0 × 10 16
Cu 2+ + 4 NH 3 [ Cu ( NH 3 ) 4 ] 2+ 1.7 × 10 13
Fe 2+ + 6 CN [ Fe ( CN ) 6 ] 4− 1.5 × 10 35
Fe 3+ + 6 CN [ Fe ( CN ) 6 ] 3− 2 × 10 43
Fe 3+ + 6 SCN [ Fe ( SCN ) 6 ] 3− 3.2 × 10 3
Hg 2+ + 4 Cl [ HgCl 4 ] 2− 1.1 × 10 16
Ni 2+ + 6 NH 3 [ Ni ( NH 3 ) 6 ] 2+ 2.0 × 10 8
Ag + + 2 Cl [ AgCl 2 ] 1.8 × 10 5
Ag + + 2 CN [ Ag ( CN ) 2 ] 1 × 10 21
Ag + + 2 NH 3 [ Ag ( NH 3 ) 2 ] + 1.7 × 10 7
Zn 2+ + 4 CN [ Zn ( CN ) 4 ] 2− 2.1 × 10 19
Zn 2+ + 4 OH [ Zn ( OH ) 4 ] 2− 2 × 10 15
Fe 3+ + SCN [ Fe ( SCN ) ] 2+ 8.9 × 10 2
Ag + + 4 SCN [ Ag ( SCN ) 4 ] 3− 1.2 × 10 10
Pb 2+ + 4 I [ PbI 4 ] 2− 3.0 × 10 4
Pt 2+ + 4 Cl [ PtCl 4 ] 2− 1 × 10 16
Cu 2+ + 4 CN [ Cu ( CN ) 4 ] 2− 1.0 × 10 25
Co 2+ + 4 SCN [ Co ( SCN ) 4 ] 2− ×  10 3

Questions & Answers

what is resonance energy
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Source:  OpenStax, Chemistry. OpenStax CNX. May 20, 2015 Download for free at http://legacy.cnx.org/content/col11760/1.9
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