Principles of Chemical PhilosophyJ. Allyn, 1881 - 623 pages |
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acetic acid alcohol alkaline ammonia ammonic anhydride antimony argentic assumed atomic weight atoms of hydrogen basic boiling bromine calcic called carbon cell chemical chemistry chloride chlorine gas CO₂ color combination combustion composition compounds condition contains copper corresponding crystalline crystals decomposed determined dissolves electricity electromotive force elementary substances elements ether Ethylic ferric ferrous formed gases given grammes graphic symbols H₂ H₂O H₂SO heat Hence hydrate hydrochloric acid hydrogen atoms hydrogen gas insoluble iodine iron kilogrammes liquid litres mercury metallic mineral molecular weight molecules Moreover nitrate nitric acid nitrogen number of atoms obtained oxide oxygen oxygen gas phosphorus platinum plumbic polarity potassic potassium precipitate proportions quantity quantivalence radical readily regarded relations replaced represent salts Silicic silver sodic sodium solid soluble solution specific gravity structure sulphate sulphide sulphuric acid temperature theory tion volatile Write the reaction zinc
Popular passages
Page 53 - fullfaced " type to indicate that the metal is used in the reaction in its well-known solid condition ; while the symbol of the molecule of hydrogen is printed in skeleton type to indicate the condition of gas. This usage will be followed throughout the book ; but, generally, when it is not important to indicate the condition of the materials involved in the reaction, ordinary type will be used. The molecule of hydrogen gas consists of two atoms, as our reaction indicates, and this is the smallest...
Page 1 - THE Specific Gravity of a body, is the ratio of its weight to the weight of an equal volume of some other body assumed as a standard.
Page 387 - ... in the Bessemer process, by decarbonizing cast-iron ; but it is probable that the qualities of steel depend fully as much on some unknown causes as on the presence of carbon. It has even been doubted whether the presence of carbon is essential ; and indeed, the whole subject is very obscure. 335. Metallic Iron. — The Sp. Gr. of the purest iron is 8.14, but cast-iron has sometimes a specific gravity as low as 7, and the density of the different varieties of the metal ranges between these extremes,...
Page 224 - ... combination, a quantity we will represent by E. It appears, then, from the above analysis, that an electrical current is a continuous chain, which is sustained in a regulated and equable motion in all its parts by the chemical activity in the cell, and that the strength of this current at any point of the chain must be directly proportional to the electromotive force, and inversely proportional to the sum of the resistances throughout the circuit. If, then, we represent the resistance in the...
Page 529 - ... obtain definite compounds. If, instead of making the experiment as just directed, a dilute solution of an alkaline silicate be poured into a considerable excess of hydrochloric acid, no precipitate is formed. The whole of the hydrate remains in solution mixed with the alkaline chlorides and free hydrochloric acid. These crystalloid substances, however, can readily be separated by dialysis from the colloid hydrate, and a pure solution of silicic hydrate may be thus obtained containing as much...
Page 55 - When a gas can be formed, or any substance which is volatile at the temperature at which the experiment is made, this volatile substance is set free.
Page 65 - ... 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 atomic weights, are known, and illustrates...
Page 206 - The law of exchanges finds its widest application in the phenomena of radiant heat, and so far as experiments have been made, it appears to be true in its greatest...
Page 208 - It may also be defined as the sine of the angle of incidence divided by the sine of the angle of refraction, as light passes from air into the substance.
Page 169 - ... must be equal to the difference between the heat of combustion of the compound and the sum of the similar values for the two combustible elementary substances, which have been accurately measured.