. , . . , , , .
:
1. ;
2. 10% H2SO4;
3. 10% NaOH;
4. 1% CuSO4;
5. ;
6. 1% ;
7. 1% ( );
8. H2SO4;
9. 30% NaOH;
10. 7% uSO4;
11. ;
12. 1% .
: 1 . 20 10% , 20 . 40-50 . , . .
:
: 5 10 10% NaOH 1 1 % CuSO4. .
: 10 1 5 1 % . 3-5 .
( ): 10 2-3 1% ( ). 20 .
, .
: 5 10 30% NaOH 1-3 7% uSO4 Cu(OH)2 . (I) (I).
: - . 5 20 1% 15 . - .
: 3-5 20 (7,5 100 100 32% 1,2) . . . - -- .
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|
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V.:
9
, . ( ) . N- . .
:
- ,
- ,
- 30% NaOH,
- .
. 45 , 1/3 2030, . 510 , 35 12 30% . 2 ; 1 5 / . . 2 , . , .
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10
