-
_______ _______
________ ______
9 - Zn, Cu, Al ZnSO4, CuSO4, Al2(SO4)3, FeCl3 . . .
Zn, Cu FeCl3 ___________________________________________________________
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, . 0,5 () . 1.
1.
CuSO4 | ZnSO4 | Al2(SO4)3 | FeCl3 ( K3[Fe(CN)6]) | |
Zn | ||||
Cu | ||||
Al |
Al ? ______________________________________________________________
________________________________________________________
1. ? . . ______________________________________________________________
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2. . ______________________________________________________
3. . () - . ___________________________________________________________
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2.
- . 1 : ZnSO4, CuSO4. : ZnSO4, CuSO4. , , .
|
|
ε = ___________
1. () . . .2, , . . - , - . . _________________
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, _________________________________________
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2. (∆G0), () (). ___________________________________________________________
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3. , :
) 0,001 ZnSO4 1 uSO4; )1 ZnSO4 0,001 M uSO4.
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. _________________________________
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4. , Zn- Cu- () (H2SO4)? ? , . . ___________________________________________________________
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5. , ? , ? ? ___________________________________________________________
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6. , . ___________________________________________________________
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, CuSO4, KI, NaCl. : (U‑ , ), , ‑24 ‑2 0,5 CuSO4, KI, NaCl.
3.1. CuSO4
CuSO4. . .
0,5 CuSO4 , 2-3 . : (), (). ( 15 20) 35 . . .
|
|
_______________________________________
1. . , ? ___________________________________________________________
____________________________________________
2. ? ? ? SO42 ? ___________________________________________________________
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2. ? , . _______________________________________________
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3. ( )____________________________________________ ___________________________________________________________
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3.2. NaCl
NaCl . 0,5 NaCl.
__________________________________
1. . ? ? ? ? ____________________________________________________________
________________________________________
2. , KI ? ? . ?_____________________________________________
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3. ? , . ________________________________________________
____________________________________________
4. ( ) __________________________________________
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3.3. KI
KI . 0,5 KI.
__________________________________
1. . ? ? ? ? ? ? _________________________________________________________
_________________________________________________________________________
|
|
2. ?________________________________________________ ___________________________________________________________
3. , , .________________________________________________
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1. ,
Cd + FeSO4 = CdSO4 + Fe.
CdSO4, , 80 . . _______________________________
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2. , 1- . , - , ∆ G .
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3. 1 NiCl2 (= 5) . - . , , 112 . 10., 100%. ________________
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4. . , 1 . ___________________________________ ____________________________________________________________________