Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 4
... obtained by the most skillful experi- menters and with the most refined apparatus . TIME AND TOPICS One of the first things to which a teacher must recon- cile himself is the fact that he can not teach to beginners in a course of one ...
... obtained by the most skillful experi- menters and with the most refined apparatus . TIME AND TOPICS One of the first things to which a teacher must recon- cile himself is the fact that he can not teach to beginners in a course of one ...
Pagina 13
... obtained in the last part of ( ƒ ) , showing the presence of lime in the pre- cipitate due , I suppose , to insufficient washing . - - Number 22. Pupils are very likely to overlook the need of having the water and the solute at the same ...
... obtained in the last part of ( ƒ ) , showing the presence of lime in the pre- cipitate due , I suppose , to insufficient washing . - - Number 22. Pupils are very likely to overlook the need of having the water and the solute at the same ...
Pagina 14
... obtained are good , I direct repetition of only the one . This may be made independently , provided the vol- umes are preserved . It is best to use separate measuring tubes , one for the acid and another for the hydroxide . The pupils ...
... obtained are good , I direct repetition of only the one . This may be made independently , provided the vol- umes are preserved . It is best to use separate measuring tubes , one for the acid and another for the hydroxide . The pupils ...
Pagina 18
... obtained , and it is a small matter to graduate these with sufficient accu- racy , using graduated flasks , and placing a mark with a file or a diamond at the proper point of the neck . This effects a considerable economy over the ...
... obtained , and it is a small matter to graduate these with sufficient accu- racy , using graduated flasks , and placing a mark with a file or a diamond at the proper point of the neck . This effects a considerable economy over the ...
Pagina 23
... obtained . For economy they may be broken in two and still serve . Pupils will often carelessly lift the tubes too high and let the air out . It is quite a puzzle to them to see how they are put into position . This is done by pouring ...
... obtained . For economy they may be broken in two and still serve . Pupils will often carelessly lift the tubes too high and let the air out . It is quite a puzzle to them to see how they are put into position . This is done by pouring ...
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