Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 4
... becoming charred . 6. This experiment may be performed on a smaller sca'.he employing a platinum tube about 16 or 18 centimetres long ong . with small ' brads , ' and heated by two Bunsens side by piece better by a flat - flame Bunsen ...
... becoming charred . 6. This experiment may be performed on a smaller sca'.he employing a platinum tube about 16 or 18 centimetres long ong . with small ' brads , ' and heated by two Bunsens side by piece better by a flat - flame Bunsen ...
Página 5
... becoming cracked makes it unsuitable for lecture illustration . 4 7. By the action of sulphuric acid upon zinc . Zn + H2SO = ZnSO4 + H2 . A quantity of granulated zinc is placed in a FIG . 5 . The that vo - necked Woulf's bottle , and ...
... becoming cracked makes it unsuitable for lecture illustration . 4 7. By the action of sulphuric acid upon zinc . Zn + H2SO = ZnSO4 + H2 . A quantity of granulated zinc is placed in a FIG . 5 . The that vo - necked Woulf's bottle , and ...
Página 7
... become coloured by foreign substances . If the gas issuing from a generating bottle is used , care must be taken to ascertain that no air is left in the apparatus when the light is applied to the jet ; it is preferable to employ ...
... become coloured by foreign substances . If the gas issuing from a generating bottle is used , care must be taken to ascertain that no air is left in the apparatus when the light is applied to the jet ; it is preferable to employ ...
Página 17
... becomes red hot , and will ignite the hydrogen . 25. To show the colour of incandescent hydrogen . When electric sparks from a Ruhmkorf coil are passed through hy- drogen in a tube , the light emitted is of a feeble blue colour , but if ...
... becomes red hot , and will ignite the hydrogen . 25. To show the colour of incandescent hydrogen . When electric sparks from a Ruhmkorf coil are passed through hy- drogen in a tube , the light emitted is of a feeble blue colour , but if ...
Página 19
... become the negative . olate , will begin to curl ; and they will con- inue to curl and uncurl as often as the current is reversed . FIG . 15 . The most suitable form of cell for this experiment is one vhich can be used with a horizontal ...
... become the negative . olate , will begin to curl ; and they will con- inue to curl and uncurl as often as the current is reversed . FIG . 15 . The most suitable form of cell for this experiment is one vhich can be used with a horizontal ...
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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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