.
, () () . (). , . .
( ( PbO )) PbO2, . ( ) 30% 40% ( 1,2185 1,3028). , ( , ) . : PbO2½ H2SO4 ½ Pb. , , .
- , PbO2. () :
Pb + PbO2 + 2H2SO4 Û 2PbSO4 + 2H2O. Ż2,06 .
( ) . PbO2. - . ( ):
: Pb 2`e = Pb2+; : Pb4+ + 2`e = Pb2+.
, , ( ):
: Pb2+ + 2`e = Pb; : Pb2+ - 2`e = Pb4+.
, .
, . Pb2+ , Pb4+ . 2.
.
( ) .
|
|
, , ( ). , . ( ). , , (), , . , ( ), .
r = m/V,
r - , m V .
( ). .
1. 90%- (, ). 30%- :
90 30
0 60
, 30%- 30 . 90%- 60 . ( ).
2. 1,57 /. 1,20 /:
1,57 0,20
1,20
1,00 0,37
20 . 1,57 / 37 . .
.
1. . . 2/3 . , , , . , , : .
2. , , ( !). . , .
3. , . , , .
4. , , , . , , ( ). , , !
5. ( ). , . .
|
|
6. , .
1. , ? ?
2. ?
3. ?
4. 100 40%- 1,307, 15%- ?
.
.
200, / | H2SO4 % | 200, / | H2SO4 % |
1,0051 | 1,2023 | ||
1,0118 | 1,2104 | ||
1,0184 | 1,2185 | ||
1,0250 | 1,2267 | ||
1,0317 | 1,2349 | ||
1,0385 | 1,2432 | ||
1,0453 | 1,2515 | ||
1,0522 | 1,2599 | ||
1,0591 | 1,2684 | ||
1,0661 | 1,2769 | ||
1,0731 | 1,2855 | ||
1,0802 | 1,2941 | ||
1,0874 | 1,3028 | ||
1,0947 | 1,3116 | ||
1,1020 | 1,3205 | ||
1,1094 | 1,3294 | ||
1,1168 | 1,3384 | ||
1,1243 | 1,3476 | ||
1,1318 | 1,3569 | ||
1,1394 | 1,3663 | ||
1,1471 | 1,3758 | ||
1,1548 | 1,3854 | ||
1,1626 | 1,3951 | ||
1,1704 | 1,4049 | ||
1,1783 | 1,4148 | ||
1,1862 | 1,4248 |
.
1. .. . . .: . 1999.
2. .. . .: 1999.
3. -. .: , 1976.
4. .. . . 2- . .: , 1962.