, , . , , (III), . , . . : , .
1. .
NaHC4H4O6 H2C4H4O6 :
K+ + HC4H4O6 = ↓ KHC4H4O6
, , , , ( 5-7). :
K+ + H2C4H4O6 = ↓ KHC4H4O6 + +;
+ + 3 D 3
, .
. NaHC4H4O6. , . , Cl, NaOH 3. .
2. (III) .
Na3[Co(NO2)6] 4-5 (III) - :
2K+ + Na+ + [Co(NO2)6]3 = ↓K2Na[Co(NO2)6].
Na3[Co(NO2)6] , . , . , - :
↓K2Na[Co(NO2)6] + 12+ = 2K+ + Na+ + Co2+ + 3NO2 + 3H2O + 3NO;
↓K2Na[Co(NO2)6] + 3OH = ↓Co(OH)3 + 6NO2 + 2K+ + Na+
. . .
. 2-3 2-3 4-5 2-3 . . HCl, CH3COOH, NaOH. .
3. .
(KCl, KNO3) . , , .
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1. (V) .
K[Sb(OH)6] 7 (V) :
Na+ + [Sb(OH)6] = ↓ Na[Sb(OH)6]
, :
↓ Na[Sb(OH)6] + + = ↓HSbO3 + Na+ + 3H2O
:
↓ Na[Sb(OH)6] + 2OH = Na+ + SbO43 + 4H2O.
: , , , .
. 2-3 . , . , , , . . NaOH .