Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 7
... light is applied to the jet ; it is preferable to employ hydrogen previously collected in a gas - holder , or contained in a steel gas bottle under pressure . A lighted taper may be applied to a mouth of a cylinder of hydrogen from ...
... light is applied to the jet ; it is preferable to employ hydrogen previously collected in a gas - holder , or contained in a steel gas bottle under pressure . A lighted taper may be applied to a mouth of a cylinder of hydrogen from ...
Página 13
... light . The light from an electric lamp is caused to fall upon a 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 ...
... light . The light from an electric lamp is caused to fall upon a 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 ...
Página 14
... light to the orifice , the hydro- gen will burn quietly as it issues from the tube ( fig . 10 ) . The air which enters the bell - jar from below , as the hydrogen is making its escape from the top , will soon form an explosive mixture ...
... light to the orifice , the hydro- gen will burn quietly as it issues from the tube ( fig . 10 ) . The air which enters the bell - jar from below , as the hydrogen is making its escape from the top , will soon form an explosive mixture ...
Página 16
... light will be seen ; on again allowing the flame to sing and continuing the motion of the mirror , the streak will appear broken up into a number of flashes , or a succession of images of the flame , the musical note being produced by ...
... light will be seen ; on again allowing the flame to sing and continuing the motion of the mirror , the streak will appear broken up into a number of flashes , or a succession of images of the flame , the musical note being produced by ...
Página 17
... light emitted is of a feeble blue colour , but if the sparks are intensified by means of a Leyden jar , or other condenser , the colour of the glowing hydrogen will be seen to be a brilliant rosy red . If the gas is under reduced ...
... light emitted is of a feeble blue colour , but if the sparks are intensified by means of a Leyden jar , or other condenser , the colour of the glowing hydrogen will be seen to be a brilliant rosy red . If the gas is under reduced ...
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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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