KMnO4.
. 810 H2C2O4∙2H2O, Na2C2O4 . , (, ), KMnO4 .
, .
- :
- . Mn2+. KMnO4 . Mn2+ .
: ; ; ; 50100 ; (1025 ).
: KMnO4 ~0,05 ., Na2C2O4 H2C2O4∙2H2O (. .); 2 . H2SO4.
.
H2C2O4∙2H2O, 100,0 0,05 . ;
m = CVMf =
H2C2O4∙2H2O , 10 % , , . . 22O4 × 2H2O . , :
m+- =
m =
m- = m+- m =
2/3 . , , . , . (1/222O4) 4 .
(1/222O4) = =
KMnO4 . .
~10 2 . H2SO4 8085. , . (10) 22O4 . , . , . 30 - .
|
|
, , 0,1 . , . , , 0,1 ;
V1 = V2 = V3 = V =
:
(1/5KMnO4) = =
():
() | |
-, , . |
: ___ ___________ 20__ .
: _________________
: ___ ___________ 20__ .