Hints on the Teaching of Elementary Chemistry in Schools and Science ClassesLongmans, Green, 1896 - 76 páginas |
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Página 10
... grams of the substance may be placed in a test - tube and strong sulphuric acid added in quantity sufficient to make a fluid paste . If heat is applied it will be well to caution young students as to the corrosive nature of the liquid ...
... grams of the substance may be placed in a test - tube and strong sulphuric acid added in quantity sufficient to make a fluid paste . If heat is applied it will be well to caution young students as to the corrosive nature of the liquid ...
Página 12
... grams to I milligram costs 6s . The simplest quantitative experiments are those in which a gain or a loss of weight of a single object , such as a crucible , has to be recorded . The following are examples of the kind of experi- ment ...
... grams to I milligram costs 6s . The simplest quantitative experiments are those in which a gain or a loss of weight of a single object , such as a crucible , has to be recorded . The following are examples of the kind of experi- ment ...
Página 13
... gram . I. Formation of metallic oxides and sulphides.― Magnesium may easily be converted into the oxide by ignition in air , but to avoid loss it must be heated in a covered crucible . A clean ' half - ounce ' FIG . I covered porcelain ...
... gram . I. Formation of metallic oxides and sulphides.― Magnesium may easily be converted into the oxide by ignition in air , but to avoid loss it must be heated in a covered crucible . A clean ' half - ounce ' FIG . I covered porcelain ...
Página 14
... gram of magnesium gives 1 · 66 gram of the oxide . In a FIG . 2 test experiment conducted as above , 39 gram gave 65 gram of oxide . This is in the proportion of I to 1'66 . Copper may be readily converted into the oxide ; but as a ...
... gram of magnesium gives 1 · 66 gram of the oxide . In a FIG . 2 test experiment conducted as above , 39 gram gave 65 gram of oxide . This is in the proportion of I to 1'66 . Copper may be readily converted into the oxide ; but as a ...
Página 15
... gram of copper gives 125 gram oxide I gram of iron " " 1'43 " " " " I gram of tin " " 1.27 " " " " Copper may also be converted into sulphide , by heating it with sulphur . A counterpoised co- vered crucible containing about 1 gram of ...
... gram of copper gives 125 gram oxide I gram of iron " " 1'43 " " " " I gram of tin " " 1.27 " " " " Copper may also be converted into sulphide , by heating it with sulphur . A counterpoised co- vered crucible containing about 1 gram of ...
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Hints on the Teaching of Elementary Chemistry in Schools and Science Classes ... William A. Tilden Sin vista previa disponible - 2018 |
Hints on the Teaching of Elementary Chemistry in Schools and Science Classes William A. Tilden Sin vista previa disponible - 2007 |
Términos y frases comunes
ammonia analysis ANATOMY apparatus Art Department ASTRONOMY atomic weight B.Sc BOTANY BUILDING CONSTRUCTION carbon chemical College of Science Coloured composition compounds containing copper Crown 8vo crucible D.Sc Diagrams Edition ELECTRICITY ELEMENTARY elements Engineering equivalent Examination Papers Examples experiment experimental formulæ gases gram homologous series Hospital hydrochloric acid hydrogen chloride Illus INORGANIC Lecturer LL.D Lond London magnesium Manual Maps MECHANICS metals molecular weight molecule of hydrogen neutralise nitrate nitric nitric acid nitrogen observation oxide oxygen Pathology Ph.D PHYSICS PHYSIOLOGY potassium potassium chlorate PRACTICAL precipitate Price Professor of Chemistry properties proportions pupil quantity REESE LIBRARY Royal 8vo Royal College salt SCHÄFER Science and Art sodium solution specific heat stage STRENGTH OF MATERIALS Students substances sulphate sulphuric acid Surgeon Syllabus teacher tellurium temperature TEXT-BOOK THEORETICAL theory tions trations TREATISE tube UNIVERSITY OF CALIFORNIA vapour densities vols volume of hydrogen Whitworth Scholar WILLIAM Woodcuts zinc
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