49.5
55.0
92.0
90.0
87.7
85.0
81.5
77.5
73.5
68.5
62.5
56.5
51.0
45.0
7.0
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8.0
61.0
67.0
72.0
77.0
81.0
84.0
87.0
89.5
91.5
93.0
94.7
39.0
33.0
28.0
23.0
19.0
16.0
13.0
10.5
8.5
7.0
5.3
Na2HPO4·2H2O分子量 = 178.05，0.2 mol/L溶液为85.61克/升。
Na2HPO4·2H2O分子量 = 358.22，0.2 mol/L溶液为71.64克/升。
Na2HPO4·2H2O分子量 = 156.03，0.2 mol/L溶液为31.21克/升。