The Owens College Junior Course of Practical ChemistryMacmillan and Company, 1887 - 201 páginas |
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Página 1
... flask about one litre capacity . Then , by means of a round file , bore two holes in the cork about three millimetres in diameter , * A doubly - bored india - rubber stopper may be used instead of a cork B and running parallel to each ...
... flask about one litre capacity . Then , by means of a round file , bore two holes in the cork about three millimetres in diameter , * A doubly - bored india - rubber stopper may be used instead of a cork B and running parallel to each ...
Página 2
... flask and tubes thoroughly , rinse with distilled water , and then fill up with distilled water . FIG . I. 3. Preparation of oxygen from mercuric oxide . When mercuric oxide is heated it is decomposed into mercury and oxygen . Mercuric ...
... flask and tubes thoroughly , rinse with distilled water , and then fill up with distilled water . FIG . I. 3. Preparation of oxygen from mercuric oxide . When mercuric oxide is heated it is decomposed into mercury and oxygen . Mercuric ...
Página 4
... flask ( about 100 cubic centimetres capacity ) a mixture of potassium chlorate and manga- nese dioxide in the proportions already mentioned . Then fit into the neck of the flask a cork through which a bent conducting tube passes , the ...
... flask ( about 100 cubic centimetres capacity ) a mixture of potassium chlorate and manga- nese dioxide in the proportions already mentioned . Then fit into the neck of the flask a cork through which a bent conducting tube passes , the ...
Página 5
... flask on a retort stand , and heat the mixture ( Fig . 2 ) ; as soon as heat is applied , bubbles of gas will begin to rise through the water , consisting of air expelled from the flask by the heat . These are allowed to escape , and ...
... flask on a retort stand , and heat the mixture ( Fig . 2 ) ; as soon as heat is applied , bubbles of gas will begin to rise through the water , consisting of air expelled from the flask by the heat . These are allowed to escape , and ...
Página 10
... flask so as to mix the acid and water . The gas will soon come off with increasing rapidity , but the first portion must be rejected , as air and hydrogen form an explosive mixture . It is therefore necessary to wait until all the air ...
... flask so as to mix the acid and water . The gas will soon come off with increasing rapidity , but the first portion must be rejected , as air and hydrogen form an explosive mixture . It is therefore necessary to wait until all the air ...
Otras ediciones - Ver todas
Términos y frases comunes
acetic acid added AgNO3 alkaline ammonia ammonium antimony aqua regia arsenic barium black precipitate blue colour boiling borax bromide brown calcium carbon dioxide charcoal splinter chloride cipitate compounds conducting tube copper Crown 8vo crucible crystals decomposed dilute solutions dissolved distilled drop Edition evaporate Fcap filter filtrate flask fused glass grams group reagents H₂O H₂S hydrate hydrochloric acid hydrogen insoluble iodide iodine iron liquid manganese manganese dioxide mercury metallic mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitric acid numerous Illustrations observe obtained oxalic acid oxygen phosphorus platinum porcelain potassium chlorate powder produces a precipitate produces a white Professor reaction reducing flame residue salt silver chloride silver nitrate sodium sodium carbonate solu soluble soluble in excess soluble in HCl soluble in HNO3 substance sulphate sulphide sulphuric acid tartaric acid tion violet wash Weigh white precipitate yellow precipitate yields zinc
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