Elements of ChemistryGinn, 1897 - 412 pages |
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action ammonia ammonium chloride amount apparatus atmosphere atomic theory atomic weight atoms of hydrogen atoms of oxygen barometer beaker bottle brought in contact burning calcium carbon dioxide caustic potash chemical compounds chemical energy chlo combine combustion contains copper crystals cubic centimetres cylinder decomposed dissolved drogen elements equal volumes eudiometer Experiment filled flame formation formula gases given heat hydro hydrochloric acid hydrogen and chlorine hydrogen and oxygen hydrogen chloride hydrogen compounds hydrogen sulphide insoluble inverted kinetic energy liquid litmus magnesium matter mercury metals methane methyl chloride Methylen chloride molecular weight molecule of hydrogen mouth neutralization nitrogen oxide pass phosphorus piece potassium hydroxide pressure produced quantity reaction relative weights represented result salt sium sodium chloride sodium hydroxide solid solution specific gravity stopcock stopper substances sulphur dioxide sulphuric acid takes place temperature test-tube tion trioxide unite volume of gas volumes of hydrogen water vapor zinc
Popular passages
Page 27 - ... of oxygen. Hence, it follows from the above experiments that water is always produced by the interaction of hydrogen and oxygen in a certain definite ratio by weight. This ratio can be discovered by weighing a glass globe which has been emptied by means of an airpump, weighing the same after filling it with pure hydrogen, then removing the hydrogen, filling the globe with oxygen, and again weighing. Comparing the results, we shall have the relation existing between the weight of a given volume...
Page 68 - It states that at any given temperature, the volume of a given mass of gas varies inversely as the pressure to which it is subjected.
Page 129 - The determination of various molecular weights, therefore, becomes a comparatively easy matter, provided we can determine the molecular weight of some one element which we can select as a standard, and with which we can compare the other gaseous substances. In order to do this we must examine more closely into the lessons taught us by the study of the combining volumes of elementary gases. The Molecules of Hydrogen consist of Two Atoms. One volume of hydrogen unites with one volume of chlorine to...
Page 129 - USE OF THE SPECIFIC GRAVITIES OF GASES. IN the preceding chapter we learned that, because equal volumes of gases contain equal numbers of molecules, the weights of equal volumes of gases must bear the same relationship to each other as the weights of their respective molecules. The determination of various molecular weights, therefore, becomes a comparatively easy matter, provided we can determine the molecular weight of some one element which we can select as a standard, and with which we can compare...
Page 169 - We have also come to the conclusion that one molecule of carbon dioxide contains one atom of carbon (see page 154) ; and, since this one atom of carbon must have been furnished by one molecule of methane, it follows that — One molecule of methane contains one atom of carbon. Combining these two results we find that : — One molecule of methane is composed of one atom of carbon and four atoms of hydrogen. Therefore its formula is represented by CH4.70 Formula of Methane from a Consideration of...
Page 88 - THE COMPOUND OF HYDROGEN AND NITROGEN. (AMMONIA.) THE not-metallic elements which have been discussed (oxygen and chlorine) unite with hydrogen to form water and hydrogen chloride respectively. Naturally, then, in studying nitrogen we ask if it also will combine with hydrogen, and if it does, what the nature of the resulting compound is. Direct Union of Nitrogen and Hydrogen Difficult. The chemically indifferent nature of nitrogen becomes apparent when we make the attempt to bring about its union...
Page 171 - Such a molecular weight is equal to the sum of the atomic weights of one atom of carbon (12), and four atoms of hydrogen (4).
Page 243 - With solution a 2. How much by weight of sodium hydroxide is neutralized by 1 gram of hydrochloric acid ? How much of potassium hydroxide ? What is the ratio between the amounts of sodium hydroxide and of potassium hydroxide which will neutralize 1 gram of hydrochloric acid? Compare this result with those obtained in this Experiment, b. The quantities of sodium hydroxide and of potassium hydroxide which will exactly neutralize the same amount of hydrochloric acid are said to be equivalent. 28. a....