Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 13
... screen , without the use of any lenses ; a large glass vessel filled with hydrogen is held at a few feet from the screen , so as to cast a shadow , with its mouth downward . On removing the cover and pouring the gas up out of the vessel ...
... screen , without the use of any lenses ; a large glass vessel filled with hydrogen is held at a few feet from the screen , so as to cast a shadow , with its mouth downward . On removing the cover and pouring the gas up out of the vessel ...
Página 16
... screen . If , while the flame is quiet ( which may be effected by diminish- ing the draught up the tube , by placing a small piece of card or mica across the top ) , the mirror be moved so as to cause the image of the flame to oscillate ...
... screen . If , while the flame is quiet ( which may be effected by diminish- ing the draught up the tube , by placing a small piece of card or mica across the top ) , the mirror be moved so as to cause the image of the flame to oscillate ...
Página 18
... screen . When two platinum electrodes are introduced , and a current from three Grove's cells passed through the liquid , bubbles of gas will be seen to be disengaged from both plates ; on. 18 CHEMICAL LECTURE EXPERIMENTS.
... screen . When two platinum electrodes are introduced , and a current from three Grove's cells passed through the liquid , bubbles of gas will be seen to be disengaged from both plates ; on. 18 CHEMICAL LECTURE EXPERIMENTS.
Página 19
... screen ) the blue colour will instantly be seen . 29. To show the change in volume which palladium under- goes when it absorbs hydrogen . Two narrow strips of palladium , each attached to a platinum wire , are varnished on one side with ...
... screen ) the blue colour will instantly be seen . 29. To show the change in volume which palladium under- goes when it absorbs hydrogen . Two narrow strips of palladium , each attached to a platinum wire , are varnished on one side with ...
Página 25
... screen by means of the electric light , the action of the light in bringing about the decomposition will be seen by the rapid formation of bubbles of gas upon the leaves , and in a very few moments bubbles of oxygen will be seen to ...
... screen by means of the electric light , the action of the light in bringing about the decomposition will be seen by the rapid formation of bubbles of gas upon the leaves , and in a very few moments bubbles of oxygen will be seen to ...
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Términos y frases comunes
allowed ammonia apparatus B.Sc beaker bell-jar blown bromine bubble bulb burning caoutchouc tube carbon dioxide carbon disulphide centimetres long charcoal Chemistry chlorate chlorine coal-gas cock colour combustion condensed containing convenient cooled copper cork cork carrying Crown 8vo cubic centimetres cylinder delivery tube Diagrams dilute dipping dish dropping funnel drops electric Elementary ether evolved experiment filled fitted fragment freezing mixture funnel gases glass tube grams heated hydrobromic acid hydrochloric acid ignited Illustrations inflamed introduced iodide iodine lamp Liquefaction of Gases liquid magnesium means mercury metal metres millimetres nitric oxide nitrogen obtained oxygen paper passed peroxide phosphorus piece of caoutchouc piece of glass placed plate platinum wire potassium potassium chlorate poured pressure salt screen seen short piece show the action shown small flask small quantity sodium solution stopcock stoppered stream sulphur dioxide sulphuretted hydrogen sulphuric acid temperature tion vapour vessel volume Woodcuts Woulf's bottle
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