How to teach chemistry, the substance of 6 lectures of Edward Frankland, summarised1875 |
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How to Teach Chemistry, the Substance of 6 Lectures of Edward Frankland ... George Chaloner No preview available - 2013 |
How to Teach Chemistry, the Substance of 6 Lectures of Edward Frankland ... George Chaloner No preview available - 2016 |
Common terms and phrases
acid gas Addenda to Lecture alkaline allotropic ammonia ammonic ammonic chloride antimony apparatus Arsenious Baric beaker bleaching boric acid bottle burning Calcic carbonic acid carbonic anhydride caustic soda chemical action CHEMISTRY chlorine colour combustion compound condensed copper cork cupric oxide cupric sulphate cylinder decompose decomposition deflagrating Demonstrate dilute sulphuric acid dipped displacement electric spark electrolysis experiment explosion ferrous sulphate flame flask formulæ fumes gases glass rod heat hydrate hydrochloric acid hydrochloric acid gas hydrogen hydroxyl ignited illustrated iodide iron jet of hydrogen light lime-water liquid litmus-paper magnesium manganic marsh-gas mercuric oxide mercury metals mixed mixture mouth nitre nitric acid nitrogen nitrous oxidised oxygen passing phosphorus piece Plumbic potassic chlorate preparation and properties Prepare and collect produced pupils sal-ammoniac salt Show shown Sodic solution steam strong sulphuric acid sulphide sulphuretted hydrogen sulphuric acid sulphurous anhydride taper test-tube tion tube vessel wash-bottle zinc zinc-ethyl
Popular passages
Page 69 - Show by test-papers alkalinity of solution of potash, acidity of solution of hydrochloric acid, and neutrality of liquid produced by the mixture of these solutions in suitable proportions (3). 24. Extinguish taper in hydrochloric acid gas (5). 25. Show solubility of hydrochloric acid gas in water (7). 26. Prepare and collect oxygen from mercuric oxide, potassic chlorate, a mixture of potassic chlorate and manganic oxide, and by the transmission of chlorine and steam through a red-hot tube (9, 10,...
Page 52 - ... grains), and dilute sulphuric acid (4 fluid ounces), containing one-fourth its volume of acid. A neat way of showing the easy decomposibility of nitric acid with liberation of oxygen is, to pour nitric acid into the bowl of a tobacco-pipe placed in an inclined position, the stem being heated to redness by aBunsen burner. The evolved gas, which is mainly oxygen, may be collected over water and tested with a lighted taper in the usual way. The occurrence of ammonia among the products of the destructive...
Page 68 - Transformation of liquids and gases into solids and vice rersd by chemical action (2, 5). 3. Ignition of phosphorus by red-hot bar of iron placed at a distance of several inches. 4. Attraction of a suspended wooden rod by an electrically excited glass tube held at a distance of several inches (25). 5 A glass rod moistened with concentrated sulphuric acid held close to a small heap of a mixture of sugar and potassic chlorate produces no effect, but inflames the mixture as soon as the rod is brought...
Page 71 - Prepare and collect carbonic oxide from a mixture of oxalic acid and sulphuric acid (1, 10, 11). 56. Prepare and collect carbonic oxide from a mixture of sulphuric acid and yellow prussiate of potash (11). 57. Inflame jar of carbonic oxide, and immerse lighted taper in the gas (5). 58. Agitate lime-water with carbonic oxide, and show that no turbidity is produced ; inflame the...
Page 68 - ... illustrations in the classes. It would be well to bring to the notice of such teachers that the performance of the following experiments, at least, ought to be witnessed by every pupil who comes up in the elementary stage. and that for the future it will be assumed that such has been the case : — 1.
Page 72 - Prepare and collect sulphuretted hydrogen from ferrous sulphide and dilute sulphuric acid (8, 9). 93. Burn jet of sulphuretted hydrogen, and hold over the flame a glass rod moistened with ammonia. 94. Show acidity of sulphuretted hydrogen (5).
Page 72 - Preparation of nitrous • anhydride from nitric acid and arsenious anhydride (13). 73. Show the reducing action of nitrous acid by adding a solution of potassic permanganate to an acidified solution of a nitrite (3). 74. Show the oxidising action of nitrous acid by adding a solution of a nitrite to acidulated water tinted with magenta (3). 75. Prepare nitric peroxide (N2O4) by mixing nitric oxide and oxygen (5). 76. Prepare nitric acid from potassic nitrate and sulphuric acid (13, 18). 77. Prepare...
Page 73 - Arsenious acid, cupric sulphate, plumbic acetate, tartar-emetic, and zincic sulphate (29). 98. Prepare sulphurous anhydride by the action of copper upon sulphuric acid. Collect over mercury or by displacement (10, 11). 99. Show action of sulphurous anhydride on litmus-paper (5). 100. Condense sulphurous anhydride in glass tube immersed in a mixture of snow and salt (10, 11, 30). 101. Immerse taper in sulphurous anhydride (5). 102. Demonstrate solubility of sulphurous anhydride in water (5). 103....
Page 72 - Prepare gaseous ammonia from a mixture of ammonic chloride and slacked lime. Collect over mercury or by displacement. 84. Demonstrate solubility of ammonia in water. 85. Immerse a taper in gaseous ammonia. 86. Burn a stream of gaseous ammonia at the end of a hot tube. 87. Show alkalinity of ammonia. 88. Demonstrate volatility of ammonic chloride. 89. Show production of ammonic chloride from gaseous ammonia and hydrochloric acid gas. 90. Prepare plastic sulphur. 91. Melt sulphur in test-tube and show...
Page 70 - Explosion of mixture of oxygen and hydrogen (22). 31. Show formation of water from jet of hydrogen burning in oxygen (8, 35). 32\ Show neutral reaction of water. 33. Show formation of ozone by action of moist phosphorus upon air. Show action of ozonised air upon paper imbued with starch and potassic iodide (23). 34. Preparation of hydroxyl by passing a stream of carbonic anhydride through water containing baric peroxide in suspension (3, 8.