Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 10
... important matter , after a record has been read , by questions somewhat like these : You say your sulphur weighed 10 grams ; how do you know that ? How do you know that the weight was not 10.001 grams ? Do you know that it was not 10.01 ...
... important matter , after a record has been read , by questions somewhat like these : You say your sulphur weighed 10 grams ; how do you know that ? How do you know that the weight was not 10.001 grams ? Do you know that it was not 10.01 ...
Pagina 11
... important that the sam- ple shall be well dried before it is weighed , hence the direc- tion to string it out ; otherwise the drying is difficult . Numbers 12 , and 12/2 , I do not allow the class to per- form , but myself prepare the ...
... important that the sam- ple shall be well dried before it is weighed , hence the direc- tion to string it out ; otherwise the drying is difficult . Numbers 12 , and 12/2 , I do not allow the class to per- form , but myself prepare the ...
Pagina 12
... important in some of the experiments that exactly this material be used . Number 17 / 2. - The commercial strong sulphuric acid is used . The dilute acid called for in the experiment is made with one volume of acid to four of water ...
... important in some of the experiments that exactly this material be used . Number 17 / 2. - The commercial strong sulphuric acid is used . The dilute acid called for in the experiment is made with one volume of acid to four of water ...
Pagina 14
... important that the hydrochloric acid be of the chemically pure ( c . p . ) grade . This is diluted with an equal volume of water . It is well thus to prepare at the start sufficient of the acid to serve all the class , in order to ...
... important that the hydrochloric acid be of the chemically pure ( c . p . ) grade . This is diluted with an equal volume of water . It is well thus to prepare at the start sufficient of the acid to serve all the class , in order to ...
Pagina 16
... important that the zinc be the granu- lated , c . p . , as already specified . The nitric acid is the com- mercial article described in Number 13/3 . The crucible should be of thin porcelain , Royal Berlin , or equally good , and Number ...
... important that the zinc be the granu- lated , c . p . , as already specified . The nitric acid is the com- mercial article described in Number 13/3 . The crucible should be of thin porcelain , Royal Berlin , or equally good , and Number ...
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