Общая химия. Афиногенов Ю.П - 30 стр.

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30
Òàáëèöà 2
Ïðîèçâåäåíèå ðàñòâîðèìîñòè òðóäíîðàñòâîðèìûõ âåùåñòâ
(ïðè êîìíàòíîé òåìïåðàòóðå)
Òàáëèöà 3
Êîíñòàíòû äèññîöèàöèè ñëàáûõ ýëåêòðîëèòîâ
(ïðè 25 °Ñ)
Âåùåñòâî
Ïðîèçâåäåíèå
ðàñòâîðèìîñòè
Âåùåñòâî
Ïðîèçâåäåíèå
ðàñòâîðèìîñòè
AgBr
3,3
⋅
10
−
13
CdS
1,2
⋅
10
−
28
AgCl
1,7
⋅
10
−
10
Cu(OH)
2
1,2
⋅
10
−
12
Ag
2
CrO
4
1,7
⋅
10
−
12
CuS
3,2
⋅
10
−
38
Ag
2
Cr
2
O
7
2
⋅
10
−
7
FeS
3,8
⋅
10
−
20
AgI
8,5
⋅
10
−
17
Mg(OH)
2
5
⋅
10
−
12
AgOH
1,5
⋅
10
−
8
MnS
1,4
⋅
10
−
15
Ag
2
S
5,9
⋅
10
−
52
NiS
1,4
⋅
10
−
24
BaCO
3
4,9
⋅
10
−
9
PbS
6,8
⋅
10
−
29
BaSO
4
9,9
⋅
10
−
11
SrSO
4
2,8
⋅
10
−
7
CaCO
3
5
⋅
10
−
9
ZnS
7,4
⋅
10
−
27
CaC
2
O
4
3,8
⋅
10
−
9
HgS
4
⋅
10
−
53
CaSO
4
6,1
⋅
10
−
5
Ýëåêòðîëèò Ê
äèññîöèàöèè
Ýëåêòðîëèò Ê
äèññîöèàöèè
CH
3
COOÍ
1,754
⋅
10
−
5
Ê
1
= 7,52
⋅
10
−
3
Ê
1
= 6,0
⋅
10
−
8
Ê
2
= 6,31
⋅
10
−
8
H
2
S
Ê
2
= 1,0⋅10
−
14
H
3
PO
4
Ê
3
= 1,26⋅10
−
12
HNO
2
4
⋅
10
−
4
Ê
1
= 5,4
⋅
10
−
2
Ê
1
= 1,04⋅10
−
3
(ÑOOH)
2
Ê
2
= 5,4⋅10
−
5
H
2
C
4
H
4
O
6
Ê
2
= 4,55
⋅
10
−
5
NH
4
OH
1,79
⋅
10
−
5
Ê
1
= 4,45⋅10
−
7
Ê
1
= 1,58⋅10
−
2
H
2
CO
3
Ê
2
= 4,69
⋅
10
−
11
H
2
SO
3
Ê
2
= 6,31
⋅
10
−
8
HCOOH
1,77⋅10
−
4
Í
2
Î
1,86⋅10
−
16
HCN
7,9⋅10
−
10
                                                           Òàáëèöà 2
        Ïðîèçâåäåíèå ðàñòâîðèìîñòè òðóäíîðàñòâîðèìûõ âåùåñòâ
                      (ïðè êîìíàòíîé òåìïåðàòóðå)
                Ïðîèçâåäåíèå                        Ïðîèçâåäåíèå
 Âåùåñòâî                              Âåùåñòâî
               ðàñòâîðèìîñòè                       ðàñòâîðèìîñòè
AgBr               3,3⋅10−13         CdS               1,2⋅10−28
AgCl               1,7⋅10−10         Cu(OH)2           1,2⋅10−12
Ag2CrO4            1,7⋅10−12         CuS               3,2⋅10−38
Ag2Cr2O7            2⋅10−7           FeS               3,8⋅10−20
AgI                8,5⋅10−17         Mg(OH)2            5⋅10−12
AgOH               1,5⋅10−8          MnS               1,4⋅10−15
Ag2S               5,9⋅10−52         NiS               1,4⋅10−24
BaCO3              4,9⋅10−9          PbS               6,8⋅10−29
BaSO4              9,9⋅10−11         SrSO4             2,8⋅10−7
CaCO3               5⋅10−9           ZnS               7,4⋅10−27
CaC2O4             3,8⋅10−9          HgS                4⋅10−53
CaSO4              6,1⋅10−5

                                                              Òàáëèöà 3
             Êîíñòàíòû äèññîöèàöèè ñëàáûõ ýëåêòðîëèòîâ
                             (ïðè 25 °Ñ)

  Ýëåêòðîëèò         Êäèññîöèàöèè     Ýëåêòðîëèò       Êäèññîöèàöèè
 CH3COOÍ             1,754⋅10−5                    Ê1 = 7,52⋅10−3
                   Ê1 = 6,0⋅10−8      H3PO4        Ê2 = 6,31⋅10−8
 H2S
                   Ê2 = 1,0⋅10−14                  Ê3 = 1,26⋅10−12
 HNO2                   4⋅10−4                     Ê1 = 5,4⋅10−2
                                      (ÑOOH)2
                   Ê1 = 1,04⋅10−3                  Ê2 = 5,4⋅10−5
 H2C4H4O6
                   Ê2 = 4,55⋅10−5     NH4OH             1,79⋅10−5
                   Ê1 = 4,45⋅10−7                  Ê1 = 1,58⋅10−2
 H2CO3                                H2SO3
                   Ê2 = 4,69⋅10−11                 Ê2 = 6,31⋅10−8
 HCOOH                1,77⋅10−4       Í2Î               1,86⋅10−16
 HCN                  7,9⋅10−10




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