The Owens College Junior Course of Practical Chemistry |
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Page 8
... blue vegetable colouring matters . Show that sulphur dioxide when dissolved in water forms an acid , and on pouring a solution of blue litmus into the wet bottle in which the sulphur was burned , observe that the blue colour is changed ...
... blue vegetable colouring matters . Show that sulphur dioxide when dissolved in water forms an acid , and on pouring a solution of blue litmus into the wet bottle in which the sulphur was burned , observe that the blue colour is changed ...
Page 9
... blue to red . 12. Presence of oxygen in air . Oxygen is present in the air diluted with another gas called nitrogen . In one hundred volumes of air , about twenty - one consist of oxygen , and seventy - nine of nitrogen . When ...
... blue to red . 12. Presence of oxygen in air . Oxygen is present in the air diluted with another gas called nitrogen . In one hundred volumes of air , about twenty - one consist of oxygen , and seventy - nine of nitrogen . When ...
Page 15
... blue colour will speedily disappear owing to the oxidizing action of the nitric acid . ( b ) Place a few bits of copper turnings in a test- tube , cover them with water , and add a little nitric acid . The copper soon begins to dissolve ...
... blue colour will speedily disappear owing to the oxidizing action of the nitric acid . ( b ) Place a few bits of copper turnings in a test- tube , cover them with water , and add a little nitric acid . The copper soon begins to dissolve ...
Page 18
... blue . Place the litmus paper in the solution , and the change will be still more marked . ( c ) Hold a glass rod which has been dipped in fuming hydrochloric acid over the solution of ammo- nia : it will at once form white fumes of ...
... blue . Place the litmus paper in the solution , and the change will be still more marked . ( c ) Hold a glass rod which has been dipped in fuming hydrochloric acid over the solution of ammo- nia : it will at once form white fumes of ...
Page 19
... blue . When this is the case the acid is said to be exactly neutralized , and the addition of ammonia must be stopped . Evaporate the solu- tion of ammonium nitrate thus obtained , until all the water is expelled ; when this is the case ...
... blue . When this is the case the acid is said to be exactly neutralized , and the addition of ammonia must be stopped . Evaporate the solu- tion of ammonium nitrate thus obtained , until all the water is expelled ; when this is the case ...
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Common terms and phrases
acetic acid acid solutions added AgNO3 produces alcohol alkaline ammonia ammonium antimony aqua regia arsenic barium Benzoic BENZOIC ACID black precipitate blue boiling borax calcium carbon dioxide chloride cipitate cloth cobalt College compounds conducting tube containing copper Crown 8vo decomposed dissolved distinguished English evolved Extra fcap fcap FeCl produces FeSO4 filter filtrate flask Fused grams group reagents H₂O H₂S H₂SO Heated on charcoal hydrate hydrochloric acid hydrogen insoluble iodide iodine iron Latin manganese dioxide mercury mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitrate nitric acid observe obtained oxalic oxalic acid oxygen platinum potassium chlorate produces a precipitate produces a white re-precipitated reaction reducing flame residue salts Schools separate silver sodium solu soluble in excess soluble in HCl soluble in HNO3 strontium substance sulphate sulphide sulphuric acid tartaric acid Thallium tion violet white precipitate yellow precipitate yields zinc
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