Outlines of physical chemistry / by A. Reychler ; translated form the French with the author's permission by John McCrae.
- Reychler, A. (Albert), 1854-
- Date:
- 1904
Licence: In copyright
Credit: Outlines of physical chemistry / by A. Reychler ; translated form the French with the author's permission by John McCrae. Source: Wellcome Collection.
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![Molecular Weights—continued M Temperature Oxygen • • 31*92 at 0° Sulphur • • • 63*96 »> 860° and at 1,500° 255*84 >> 450° Chlorine » • • 70*74 tt 200° [46*50] >» 1,567° Cadmium . • • 111*70 » 1,040° Phosphorus • • 123*84 »» 500° and at 1,040° Bromine • • • 159*52 ft 100° less tt 1,500° Selenium • a • 158*0 tt 1,420° Mercury . • • 199*8 tt 424° and at 1,560° Iodine • • • 253*07 tt 185° „ 500° a half less tt 1,700° Tellurium . • 250*0 tt 1,440° Arsenic • • • 299*6 tt 860° Molecular Weights of Compounds These are determined in the same way, and are subject to the same corrections as those of the elements. For example : Hydrochloric acid ; d = 1*247, which gives m = 36 Equivalents » , 1*00 for hydrogen 35*37 for chlorine Sum j 7 36*37 = corrected molecular weight Sulphurous anhydride : d = 2*247 which gives m = 64*87. In 64*87 parts of sulphurous anhydride there are : 32*40 parts of oxygen, therefore 4 equivalents (or 2 atoms) 31*92 32*47 parts of sulphur, therefore 2 equivalents (or 1 atom) . = 31*98 i • » Corrected molecular weight 63*90](https://iiif.wellcomecollection.org/image/b2813400x_0033.jp2/full/800%2C/0/default.jpg)
