Practical Chemistry: A Course of Laboratory Work |
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Page 8
... drops of water are formed in the small flask . Continue the passage of the hydrogen over the hot copper oxide so long as any water seems to be produced , or any change to occur in the appearance of the matter in the tube . Towards the ...
... drops of water are formed in the small flask . Continue the passage of the hydrogen over the hot copper oxide so long as any water seems to be produced , or any change to occur in the appearance of the matter in the tube . Towards the ...
Page 9
... drops of solution of silver nitrate ; in the case of the chlorate no visible change occurs , in the other case a white pp . is produced ( this pp . is silver chloride : the solid obtained by heating potassium chlorate is called ...
... drops of solution of silver nitrate ; in the case of the chlorate no visible change occurs , in the other case a white pp . is produced ( this pp . is silver chloride : the solid obtained by heating potassium chlorate is called ...
Page 10
... drop by drop . When the contents of the crucible have turned to a white powdery solid cease to add acid , but continue heating , and raising the temperature , until fumes of acid are no longer given off . Then cool , and counterpoise ...
... drop by drop . When the contents of the crucible have turned to a white powdery solid cease to add acid , but continue heating , and raising the temperature , until fumes of acid are no longer given off . Then cool , and counterpoise ...
Page 19
... drop of the solution ; it is sour . Pour some blue litmus into the solution ; the colour changes to red . The sulphur and oxy- gen have combined to form a new substance , sulphurous oxide , which has dissolved in the water . Fig . 9 ...
... drop of the solution ; it is sour . Pour some blue litmus into the solution ; the colour changes to red . The sulphur and oxy- gen have combined to form a new substance , sulphurous oxide , which has dissolved in the water . Fig . 9 ...
Page 26
... drops of the filtrate leave a solid residue when evaporated to dryness in a watch - glass . Dry the insoluble residue and compare it with the manganese dioxide given you ; as far as you can judge they are identical . This conclusion ...
... drops of the filtrate leave a solid residue when evaporated to dryness in a watch - glass . Dry the insoluble residue and compare it with the manganese dioxide given you ; as far as you can judge they are identical . This conclusion ...
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Common terms and phrases
acetic acid alcohol alkali allow to cool ammonia ammonium carbamate ammonium chloride apparatus aqueous solution atomic weight barium barium oxide basin beaker boiling bottle bulb Bunsen-lamp calcium carbamate carbon dioxide Chap chemical change chromium trioxide colour combined composition compound concentrated sulphuric acid copper sulphate cork Crown 8vo crucible crystallising crystals decomposed determine dilute sulphuric acid dissolve drop ELEMENTARY CHEMISTRY elements equivalent evaporate evolved exit tube experiments ferric chloride ferrous sulphate filter filtrate flask grams H₂O hard glass heat hydriodic acid hydrochloric acid hydrogen hydroxide interact iodide iodine iron liquid litmus magnesium mass mercury metal mixture nitric acid nitrogen obtained oxalic acid oxide oxidised oxygen pass permanganate phosphorus platinum potassium potassium chlorate prepared produced prove pure ratio reacting weight reaction salt shew shewn in Fig solid specific gravity sulphocyanide sulphuric acid temperature vapour warm wash weight of oxygen zinc
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