Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
Din interiorul cărții
Rezultatele 1 - 5 din 19
Pagina 4
... volume and mass of hydrogen liberated by 2.4 grams of magnesium and 6.5 grams of zinc , as illustration of equivalent proportions . If he makes two determinations of the value for each metal , and finds that the value for zinc does not ...
... volume and mass of hydrogen liberated by 2.4 grams of magnesium and 6.5 grams of zinc , as illustration of equivalent proportions . If he makes two determinations of the value for each metal , and finds that the value for zinc does not ...
Pagina 6
... volume to another part . An expedient of this kind is a sacrifice , for it is very desirable that the student's work should be thor- oughly individual . If it is used the teacher needs 6 THE ELEMENTARY PRINCIPLES OF CHEMISTRY.
... volume to another part . An expedient of this kind is a sacrifice , for it is very desirable that the student's work should be thor- oughly individual . If it is used the teacher needs 6 THE ELEMENTARY PRINCIPLES OF CHEMISTRY.
Pagina 12
... volume of acid to four of water , and I pre- fer at this stage of the work to have only this dilute acid supplied on the side table . If the pupils are to make the dilution , they should be warned as to the manner of so doing . ( See ...
... volume of acid to four of water , and I pre- fer at this stage of the work to have only this dilute acid supplied on the side table . If the pupils are to make the dilution , they should be warned as to the manner of so doing . ( See ...
Pagina 14
... volume of water . It is well thus to prepare at the start sufficient of the acid to serve all the class , in order to insure uniformity of sample for the whole ex- periment . The ammonium hydroxide is the commercial article , “ F F F ...
... volume of water . It is well thus to prepare at the start sufficient of the acid to serve all the class , in order to insure uniformity of sample for the whole ex- periment . The ammonium hydroxide is the commercial article , “ F F F ...
Pagina 15
... volume . I have the class weigh only to tenths , and I hold them to results that show a variation not exceeding 0.2 of a grain from the ratio of 2 : 1 : 2 . A good proportion of the results will show a smaller variation than this ...
... volume . I have the class weigh only to tenths , and I hold them to results that show a variation not exceeding 0.2 of a grain from the ratio of 2 : 1 : 2 . A good proportion of the results will show a smaller variation than this ...
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