V(Na2S2O3), | V(H2O), | V(H2SO4), | C(Na2S2O3), / | t, | , -1 | |
1 | 2 | 6 | 2 | |||
2 | 4 | 4 | 2 | |||
3 | 6 | 2 | 2 |
:__________________________________________________________________________________________________________________________________________________
|
|
2. .
. .
. 100 250 , , , .
. FeCI3, KNCS, KCI.
|
|
. (III):
FeCI3 + 3KNCS↔Fe(NCS)3 + 3KCI
Fe(NCS)3 , , .
: 20 1-2 FeCI3 KNCS. . FeCI3, KNCS, KCI. , .
2.
.
/ | |||
1 | FeCI3 - | ||
2 | KNCS- | ||
3 | KCI |
:_________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3. .
. .
. , , .
. C(I2) = 0,05 /, 1%- .
. : I2 + (6H10O5)n ↔ I2(6H10O5)n
. 4-5 . , . . .
:____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
, .
:______________________________________________________________________________________________________________________________________________________________________________________________________________________________
4. .
. , .
. , , 2 0,5 , .
. , 0,25; 0,9 4%- .
: 0,25; 0,9 4% . 0,1 . . .
:
-, -, . , .
:
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
|
|
.1
-, -,
0,25%- | 0,9%- | 4%- |
_________________ | ____________________ | _______________ |
.
1. ?
________________________________________________________________________________________________________________________________________________________
2. , .
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
3. ?
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
4. 0,9% 0,9% ? 37 0. 1 /.
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