(II)
. .
:
(II), .
(200-250 ) - 1 - 1 - 1 (10 ) - 1 (250 ) - 2 (100 ) - 1 | , KMnO4, 0,0500 (1/5 KMnO4) , HI, . ., |
!
. nO4 (II) (III):
5Fe2+ + Mn4- + 8H+ = 5Fe3+ + Mn2+ + 4H2O
(II), . - . 34, Fe3+ , .
F3+, Fe2+. .
- (II) :
SnCI42- + 2HgCl2 = SnCl62- + Hg2Cl2
(I) Hg2CI2 . , (II) nO4. .
1) Hg2Cl2 . H2SnCl4, Hg2Cl2 , nO4 . , Hg2Cl2 , :
Hg2Cl2 +SnCl42- = SnCl62-+2Hg
, , . , H2SnCl4 (III), 12 .
2) nO4 Hg2CI2 - . , 30 . .
3) (II) 1- Cl2, nO4. (II), 1-. , , F3+ [Fe(PO4)2]3-.
|
|
, MnSO4, 3O4 H2SO4 ( ).
2. .
2F3+ +2Zn = 2Fe2++Zn2+
, .
.
1. ______ , .
2. (250 ) (_________) , 5 1, .
3. .
4. 5 , 100 - , 30 .
:
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.
1V1=2V2, (II).
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