. . . , . , , . , .
. , .
- .
= 1/ ( )
- .
43. : . .
, - .
[Ag(NH3)2]Cl + NiS04 +4NH3^ [Ni(NH3)6]S04 +AgCl I
, (KH[Ag(NH3)2]+ =9,3-1(8; [(3)6]2+ = 1,9--9) AgCl - Ks = 1,8 10"10
(, , ). -
. ́ B12 , . , B12: 5-.
B12 , B12, , B12, B12- [1]. B12 .
B12 , . ( , , ), , , . . . . , : , , 5'- B12, . - -.
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