Practical Chemistry: A Course of Laboratory Work |
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Page 33
... washing is called washing by decantation . You have now to prove that the white solid which remains in the basin is barium sulphate . To do this you must prove ( 1 ) that it is a compound of barium ; ( 2 ) that it is a sulphate ...
... washing is called washing by decantation . You have now to prove that the white solid which remains in the basin is barium sulphate . To do this you must prove ( 1 ) that it is a compound of barium ; ( 2 ) that it is a sulphate ...
Page 42
... wash them by pouring two or three successive very small quantities of cold water over them on the filter . Then dissolve the crystals in water and examine the action of the solution on litmus ; it is slightly alkaline , i.e. it turns ...
... wash them by pouring two or three successive very small quantities of cold water over them on the filter . Then dissolve the crystals in water and examine the action of the solution on litmus ; it is slightly alkaline , i.e. it turns ...
Page 53
... wash the white solid by decantation until the washings are no longer acid to litmus paper . that the white solid is barium sulphate ( s . Chap . VII . Exp . 5 ) . Prove that the aqueous solution of the gas produced in the reaction , ( 1 ) ...
... wash the white solid by decantation until the washings are no longer acid to litmus paper . that the white solid is barium sulphate ( s . Chap . VII . Exp . 5 ) . Prove that the aqueous solution of the gas produced in the reaction , ( 1 ) ...
Page 63
... Wash the crystals obtained by using chlorine repeatedly with small quantities of cold water , continuing this process until the washings cease to give the reaction with silver nitrate characteristic of a chloride . Dry the crystals ...
... Wash the crystals obtained by using chlorine repeatedly with small quantities of cold water , continuing this process until the washings cease to give the reaction with silver nitrate characteristic of a chloride . Dry the crystals ...
Page 67
... wash each with cold water until the washings are neutral to litmus and free from sul- phates . Dry the pps . at 100 ° . These pps . are hydroxides having the composition MO2H , where M = Mg , Zn , or Cd . Prove that zinc hydroxide is ...
... wash each with cold water until the washings are neutral to litmus and free from sul- phates . Dry the pps . at 100 ° . These pps . are hydroxides having the composition MO2H , where M = Mg , Zn , or Cd . Prove that zinc hydroxide is ...
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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 crucible crystallising crystals decomposed Demy 8vo 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 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 trioxide vapour warm wash weight of oxygen zinc
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