Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 51
... the water , and it may either be left in while the water is added , or it can be tipped out without disturbing the stem , owing to the flexible con- nection . 88. To show the expansion of water on freezing . E 2 WATER 51.
... the water , and it may either be left in while the water is added , or it can be tipped out without disturbing the stem , owing to the flexible con- nection . 88. To show the expansion of water on freezing . E 2 WATER 51.
Página 52
... freezing . This may be done by means of a similar apparatus to that described for showing the maximum density . The bulb , which for this purpose may be much smaller , is immersed in ice - cold water , and an image of the stem and the ...
... freezing . This may be done by means of a similar apparatus to that described for showing the maximum density . The bulb , which for this purpose may be much smaller , is immersed in ice - cold water , and an image of the stem and the ...
Página 53
... freezing mixture it will be split along the side . A glass tube filled with water and hermetically sealed will also show this effect well . The glass tube should be simply laid upon the freezing mixture , so that it can be removed after ...
... freezing mixture it will be split along the side . A glass tube filled with water and hermetically sealed will also show this effect well . The glass tube should be simply laid upon the freezing mixture , so that it can be removed after ...
Página 54
... freezing mixtures of successive degrees of cold , the temperature of the water may be lowered — 12 ° or even -15 ° C ... freeze ; but at about -8 ° to -10 ° the water may be shaken even fairly roughly without its 54 CHEMICAL LECTURE ...
... freezing mixtures of successive degrees of cold , the temperature of the water may be lowered — 12 ° or even -15 ° C ... freeze ; but at about -8 ° to -10 ° the water may be shaken even fairly roughly without its 54 CHEMICAL LECTURE ...
Página 55
... freezing mixture at about -20 ° or lower , when ice instantly forms , and the mercury rises to the zero . The freezing mixture most commonly used is ice and common salt , which , without any special care in the prepara- tion , will give ...
... freezing mixture at about -20 ° or lower , when ice instantly forms , and the mercury rises to the zero . The freezing mixture most commonly used is ice and common salt , which , without any special care in the prepara- tion , will give ...
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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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