The New ChemistryHenry S. King & Company, 1874 - 326 páginas |
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Página 73
... express its molecular weight ; but , on account of certain relations of our subject , not yet explained , which make the half - molecule a more * convenient unit , we use for the molecular weights a set of numbers twice as large as they ...
... express its molecular weight ; but , on account of certain relations of our subject , not yet explained , which make the half - molecule a more * convenient unit , we use for the molecular weights a set of numbers twice as large as they ...
Página 116
... express the proportions in which each of two elements combines with a third , express also the proportions in which they unite with each other . Thus , 71 parts of chlorine combine with either 32 parts of sulphur or with 56 parts of ...
... express the proportions in which each of two elements combines with a third , express also the proportions in which they unite with each other . Thus , 71 parts of chlorine combine with either 32 parts of sulphur or with 56 parts of ...
Página 117
... express the relative weight of the different atoms . Assume further that combination consists merely in the union between atoms , and that chemical changes are deter- mined by their aggregation , separation , or displace- ment , and we ...
... express the relative weight of the different atoms . Assume further that combination consists merely in the union between atoms , and that chemical changes are deter- mined by their aggregation , separation , or displace- ment , and we ...
Página 120
... express the molecular weight of the substance in these units . In- stead , however , of taking the hydrogen - molecule as our unit , we selected the half - hydrogen molecule for that purpose , and called its weight a microcrith , thus ...
... express the molecular weight of the substance in these units . In- stead , however , of taking the hydrogen - molecule as our unit , we selected the half - hydrogen molecule for that purpose , and called its weight a microcrith , thus ...
Página 136
... proceeding to show how admirably this system is suited to express chemical changes , let me ask your attention for a moment to the nature of the SYMBOL OF ALCOHOL , HOW DETERMINED . 137 evidence by 136 CHEMICAL SYMBOLS .
... proceeding to show how admirably this system is suited to express chemical changes , let me ask your attention for a moment to the nature of the SYMBOL OF ALCOHOL , HOW DETERMINED . 137 evidence by 136 CHEMICAL SYMBOLS .
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Palavras e frases frequentes
acetic ether aëriform alcohol alkali atom of oxygen atomic weights atoms of hydrogen burning butyric acid calcic called carbonic dioxide charcoal chemical change chemistry chlorine color combination combustion compounds consists contain Cornhill criths Crown 8vo cubic cubic centimetres cule definite Edition elementary substances elements energy equal ether evidence experiment facts flame formic acid gases Gazette glass grammes heat Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms illustrate iron lecture light liquid litre mass material metal microcriths mole molecular structure molecular weight molecule of oxygen molecule of water molecules nitric nitric acid nitro-glycerine nitrogen obtained oxide oxygen oxygen gas particles Paternoster Row phenomena phosphorus polarized pole potassic pounds pressure Price Prof Published by Henry quantivalence radical reaction result salt simple sodium solid solution specific gravity sugar sulphur symbol temperature theory tion vapor volatile volume
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