Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 10
... reading and discussion of the observations fol- lows the fuller presentation of Part I. In calculating the specific gravity of sulphur , the error is very commonly made of subtracting the weight of the tube filled with water from the ...
... reading and discussion of the observations fol- lows the fuller presentation of Part I. In calculating the specific gravity of sulphur , the error is very commonly made of subtracting the weight of the tube filled with water from the ...
Pagina 13
... readings , and therefore it is useful to attach a num- bered tag to each , in order that the student may use one thermometer through his series of readings . If the scale becomes dim , it is improved by rubbing over it a piece of ...
... readings , and therefore it is useful to attach a num- bered tag to each , in order that the student may use one thermometer through his series of readings . If the scale becomes dim , it is improved by rubbing over it a piece of ...
Pagina 19
... reading makes a difference of 2,500 in the final result . Number 62 / 2. - Problems solved : S = 31.8 = 50 % SO2 = 63.6 Fe 02 = 31.8 = 50 % 100 = 55.6 = 63.6 % S = 31.8 = 36.4 % FeS = 87.4 100 Zn S H2 S = 64.9 = 67.1 % = SUGGESTIONS TO ...
... reading makes a difference of 2,500 in the final result . Number 62 / 2. - Problems solved : S = 31.8 = 50 % SO2 = 63.6 Fe 02 = 31.8 = 50 % 100 = 55.6 = 63.6 % S = 31.8 = 36.4 % FeS = 87.4 100 Zn S H2 S = 64.9 = 67.1 % = SUGGESTIONS TO ...
Pagina 24
... reading of volumes is limited to about 0.1 c.c. , and this observed value is multiplied by about 30 , a constancy of product within three or four units , or even better , is realized . The barometer , if not already understood , should ...
... reading of volumes is limited to about 0.1 c.c. , and this observed value is multiplied by about 30 , a constancy of product within three or four units , or even better , is realized . The barometer , if not already understood , should ...
Pagina 26
... reader will note that in the text the matter is presented and discussed without using the conception of atoms and molecules . Some teachers may think this too radical a departure from prevailing methods , but my con- viction grows with ...
... reader will note that in the text the matter is presented and discussed without using the conception of atoms and molecules . Some teachers may think this too radical a departure from prevailing methods , but my con- viction grows with ...
Alte ediții - Afișează-le pe toate
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... A. V. E. Young Nu există previzualizare disponibilă - 2015 |
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... Abram Eps Van Young Nu există previzualizare disponibilă - 2016 |
Suggestions to Teachers: Designed to Accompany the Elementary Principles of ... A. V. E. Young Nu există previzualizare disponibilă - 2018 |
Termeni și expresii frecvente
2H₂O 2HCl 2NaOH acetylene alcohol Ammonium chloride apparatus APPLETON AND COMPANY barium chloride Botany bottle Boyle's Law CaCl2 calcium carbide carbonate catalogues cents Charles's Law chemical chlorate class results class room Clodd Cloth CO₂ College color combining weight Combustion commercial cork crys dealers diameter dilute dioxide dust Evaporating dish experiment flame give glass grams Green & Company H₂O heat hydrochloric acid hydrogen hydroxide ignite Illustrations inches instructor iodine laboratory lecture table liters magnesium matter mercury method MgSO4 naphthalene nitrate nitric acid Number oxide oxygen paper phosphorus Plant Relations potassium potassium chlorate powd powder preferable PRINCIPLES OF CHEMISTRY Professor pupil pure quantitative result quantity quizzing ratio reaction recommended rubber sample SHELDON AMOS side table sodium Sodium carbonate sodium oxide solution specific gravity stopper student sulphuric acid supplied temperature test-tubes tion topics tube TWENTIETH CENTURY TEXT-BOOKS University volume zinc