SolutionsLongmans, Green, and Company, 1891 - 316 pages |
Contents
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Common terms and phrases
absorbed absorption absorption-coefficient acetic acid alcohol ammonia ammonium amylic alcohol aqueous solutions benzene boiling-point calcium calculated carbon dioxide cell cent centims Chemie Chim chloride column compounds Compt concentration constant constituents containing corresponding curve decrease determined deviations diffusion dilute solutions dissolved substance equal equation equilibrium ether Ethyl examined exert experiments formula freezing-point gaseous gases grams greater heat of solution hydrate hydrochloric acid increases investigation ions layers liquid lowering of vapour-pressure measurements membrane method miscible mixture molecular depressions molecular weight NaCl nitrate number of molecules numbers observed obtained occurs osmotic pressure phenomena Phys physikal Pogg potassium potassium chloride properties proportional pure water quantity of salt Raoult ratio relations rotation salt-solutions saturated solution separation similar sodium sodium chloride solid solu solubility solutions of salts solvent specific gravity succinic acid sulphate temperature tion tube values vapour vapour-pressure vessel volume volume-changes Zeitschr
Popular passages
Page 2 - The total pressure of a mixture of gases is the sum of the partial pressures of each of the gases in the mixture.
Page 279 - ... ammonium salts, &c., are in accordance with the electrolytic dissociation hypothesis ; and has suggested that since salts formed from weak acids are as good conductors as those formed from strong ones, we may expect in this case also, marked deviations from the calculated values. He also considers that such salts as ammonium formate, &c., when in aqueous solution would show molecular rotations which would not be the sums of the rotations of the components of the salts, as must nearly be the case...
Page 148 - Dissolved substances obey gaseous laws because " the molecules of the solvent in the interior of the solution act equally in all directions on each molecule of the dissolved substance, these molecules are all free to move as if there were, on the whole, no action upon them. Hence it follows that the kinetic energy of the molecules of the dissolved substance is equal to that of the gas at the same temperature.
Page 1 - homogeneous mixtures which cannot be separated into their constituent parts by mechanical means." Gases have unlimited power of solution. One gas dissolves in another in all proportions so long as they do not unite chemically, and the homogeneous mixture manifests the sum of the properties of the two constituents. Liquids dissolve gases without exception, although the readiness with which such...
Page 116 - Dissolved substances exert the same pressure, in the form of osmotic pressure, as they would exert were they gasified, at the same temperature, without change of volume...
Page 171 - The relative lowering of vapor pressure is proportional to the ratio of the number of molecules of the dissolved substance to the total number of molecules in the solution.
Page 120 - the quantity of salt, which diffuses through a given area, is proportional to the difference between the concentrations of two areas infinitely near each other.
Page 269 - The colours of salt solutions are essentially the colours of the parts of molecules, or ions, contained therein, and all salt solutions which contain a certain ion must exhibit the characteristic colour of that ion. Should the expected colour not appear, we may conclude that the corresponding ion is absent.
Page 13 - I use the expression solubility of a gas, \, to signify the ratio of the volume of gas absorbed to the volume of the absorbing liquid, at any specified temperature and pressure :' v The relation between the solubility of a gas and Bunsen's absorption-coefficient is \ = ft (1 + at).
Page 170 - 71 Turpentine 136 -71 Cyanic acid 43 -70 Benzaldehyde 106 -72 Aniline 43 -71 Antimony chloride 228-5. -67 (iv) When the ratio of the number of molecules of the dissolved substance to the number of molecules of the solvent is made the same, the lowering of vapour pressure is independent of the nature of the substance and of the solvent. (For table see p.