Hints on the Teaching of Elementary Chemistry in Schools and Science ClassesLongmans, Green, 1896 - 76 páginas |
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Página 12
... measurements of weight or of volume . Contrary to general belief , quantitative work may be done with very simple and inexpensive appliances , and in the hands of even young students results may be obtained which closely accord with ...
... measurements of weight or of volume . Contrary to general belief , quantitative work may be done with very simple and inexpensive appliances , and in the hands of even young students results may be obtained which closely accord with ...
Página 20
... and the observation of weight to the third place of decimals , it is not within the capacity of pupils at this stage . 21 . CHAPTER III OBSERVATION - QUANTITATIVE Measurement of gases 20 Teaching of Elementary Chemistry.
... and the observation of weight to the third place of decimals , it is not within the capacity of pupils at this stage . 21 . CHAPTER III OBSERVATION - QUANTITATIVE Measurement of gases 20 Teaching of Elementary Chemistry.
Página 21
Sir William Augustus Tilden. 21 . CHAPTER III OBSERVATION - QUANTITATIVE Measurement of gases -In the preceding chapter the experiments described involve deter- minations of gain or loss of weight . The pupil may now proceed to make ...
Sir William Augustus Tilden. 21 . CHAPTER III OBSERVATION - QUANTITATIVE Measurement of gases -In the preceding chapter the experiments described involve deter- minations of gain or loss of weight . The pupil may now proceed to make ...
Página 23
... measured by pouring it out into a graduated cylinder . No attempt should be made to expel the whole of the gas from the tube into the jar , for this residual gas occupies the space previously filled by air , which at the beginning of ...
... measured by pouring it out into a graduated cylinder . No attempt should be made to expel the whole of the gas from the tube into the jar , for this residual gas occupies the space previously filled by air , which at the beginning of ...
Página 24
... measurement of gas is the estimation of oxygen in atmospheric air by means of phosphorus . A graduated measuring cylinder may be used for this purpose , or simply a plain gas cylinder holding about 250 c.c. A scratch is made about 5 cm ...
... measurement of gas is the estimation of oxygen in atmospheric air by means of phosphorus . A graduated measuring cylinder may be used for this purpose , or simply a plain gas cylinder holding about 250 c.c. A scratch is made about 5 cm ...
Otras ediciones - Ver todas
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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