Suggestions to Teachers: Designed to Accompany the Elementary Principles of ChemistryD. Appleton, 1901 - 48 pagini |
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Pagina 33
... phosphorus . It is best that the instructor should keep the supply at his own desk , himself cut suitable pieces - one quarter the size of a pea is more than enough— and give to each pupil , when he is ready to use it , only one small ...
... phosphorus . It is best that the instructor should keep the supply at his own desk , himself cut suitable pieces - one quarter the size of a pea is more than enough— and give to each pupil , when he is ready to use it , only one small ...
Pagina 34
... phosphorus , a stick one or one and a half inches long , with freshly cleaned surface ; also a little water , not enough of course to cover the phosphorus . A strip of starch paper is hung in the bottle over the phosphorus . The starch ...
... phosphorus , a stick one or one and a half inches long , with freshly cleaned surface ; also a little water , not enough of course to cover the phosphorus . A strip of starch paper is hung in the bottle over the phosphorus . The starch ...
Pagina 37
... in other blowpipe experiments . Number 485. - Exhibit , if possible , samples of apatite or other natural phosphate and of glacial phosphoric acid , also of the phosphorus chlorides . Numbers 486 and 487. - It is best that the LIBRAR.
... in other blowpipe experiments . Number 485. - Exhibit , if possible , samples of apatite or other natural phosphate and of glacial phosphoric acid , also of the phosphorus chlorides . Numbers 486 and 487. - It is best that the LIBRAR.
Pagina 38
... phosphorus to each student as it is called for . Some additional illustrations may be made on the lecture table ; for example , a small fragment of phosphorus covered with powdered charcoal or bone black takes fire in a few minutes . If ...
... phosphorus to each student as it is called for . Some additional illustrations may be made on the lecture table ; for example , a small fragment of phosphorus covered with powdered charcoal or bone black takes fire in a few minutes . If ...
Pagina 39
... phosphorus ignited in the deflagrating spoon . Into the fifth jar , the deep one , shake some very finely pulverized antimony , pre- viously somewhat heated on the spatula blade . In each case the fumes are so irritating that the jars ...
... phosphorus ignited in the deflagrating spoon . Into the fifth jar , the deep one , shake some very finely pulverized antimony , pre- viously somewhat heated on the spatula blade . In each case the fumes are so irritating that the jars ...
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