Reference Main

Periodic Table of Elements

Constants and Variables

Vapor Pressure of Water

Ionization Energies, Electron Affinities, and Electronegativities

Ionization Constants for Weak Acids at 25º C

Ionization Constants for Weak Bases at 25º C

Standard Reduction Potentials

Thermodynamic Values (A-C)

Thermodynamic Values (F-O)

Thermodynamic Values (P-Z)

Bibliography



Vapor Pressure of Water at Various Temperatures


Temperature ºC
-10
-9
-8
-7
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
Vapor Pressure torr
2.1
2.3
2.5
2.7
2.9
3.2
3.4
3.7
4.0
4.3
4.6
4.9
5.3
5.7
6.1
6.5
7.0
7.5
8.0
8.6
9.2
9.8
10.5
11.2
12.0
12.8
13.6
14.5
15.5
16.5
17.5
18.7
19.8
21.1
22.4
23.8
25.2
26.7
28.3
30.0
31.8
33.7
35.7
37.7
39.9
42.2
44.6
47.1
49.7
52.4
55.3
58.3
61.5
64.8
68.3
71.9
75.7
79.6
83.7
88.0
92.5
Temperature ºC
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
Vapor Pressure torr
97.2
102.1
107.2
112.5
118.0
123.8
129.8
136.1
142.6
149.7
156.4
163.8
171.4
179.3
187.5
196.1
205.0
214.2
223.7
233.7
243.9
254.6
265.7
277.2
289.1
301.4
314.1
327.3
341.0
355.1
369.7
384.9
400.6
416.8
433.6
450.9
468.7
487.1
506.1
525.8
546.1
567.0
588.6
610.9
633.9
657.6
682.1
707.3
733.2
760.0
787.6
815.9
845.1
875.1
906.1
937.9
970.6
1004.4
1038.9
1074.6