First Principles of Chemical Philosophy, Volume 1 |
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acetic acid affinities alcohol ammonia aqueous vapor atomic weight atoms of hydrogen bivalent bodies Calcic called calorific power carbonic anhydride cell chemical change chemical compounds chemistry Chloride class of compounds color combination combustion compound radicals copper criths crystalline form crystals cubic centimetre cule definite electrical electromotive force elementary atoms elementary substances elements equal Ether Ethylic fact formula gases given grammes graphic symbols H₂ H₂O Hence Hydrate hydrochloric acid hydrogen atoms hydrogen gas iron kilogrammes known liquid litres mercury metallic metres molecular weight molecule Moreover motion names nitrate nitric acid nitrogen number of atoms octahedron Oxide oxygen oxygen gas percentage composition phenomena Phosphoric plate platinum Potassic principle problems proportion quantivalence regard relations replaced represent resistance result salt Sodic sodium solid solution specific gravity specific heat spectrum sulphate sulphuric acid sulphuric anhydride temperature theory tion unit univalent volume wire zinc
Popular passages
Page 134 - ... sense of the word. In all the above examples the differences between the isomeric compounds are sufficiently great to lead chemists to assign to each a distinct name. When, however, the differences are not sufficiently great to justify a distinct name, the two bodies are said to be different allotropic states of the same substance. Thus there are two varieties of tartaric acid ; the first of which deviates the plane of polarization of a ray of light to the left, while the second deviates it to...
Page 1 - The Specific Gravity of a substance is the ratio of its weight to that of an equal volume of water.
Page 37 - Whenever a gas can be formed, or any substance which is volatile at the temperature at which the experiment is made, this volatile product is set free. The reactions 17 and...
Page 42 - As the weight of the molecule it to the weight of each element, so is one hundred parts to the percentage required. On the other hand, having given the percentage composition, it is easy to calculate the number of atoms of each element in the molecule of the substance. This problem is evidently the reverse of the last, but it does not, like that, always admit of a definite solution ; for, while there is but one percentage composition corresponding to a given symbol, there maybe an infinite number...
Page 46 - LJ The first of these forms is adapted for calculating the per cent of each element of a compound when the molecular weight, the number of atoms of each element in one molecule, and the several atomic weights, are known ; and it is evident that all these data are given by the chemical symbol of the compound. The second of these forms enables us to calculate the number of atoms of each element present in one molecule of a compound when the percentage composition, the molecular weight, and the several...
Page 134 - C^H^O^, and are isomeric. When, however, the differences are not sufficiently great to justify a distinct name, the two bodies are said to be different allotropic states of the same substance, and the phenomenon is called allotropism. Thus, there are three varieties of tartaric acid which differ in their action on polarized light, but which are in almost every other respect identical.
Page 21 - ... we can therefore allow it to cool, clean it, and weigh it at our leisure. This will give us the weight of the globe filled with alcohol vapor at a known temperature, t', and under a known pressure, H'.
Page 189 - Exchanges," and has been stated as follows : " The relation between the power of emission, and power of absorption for each kind of rays (light or heat) is the same for all bodies at the same temperature." . . . .