Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, 1892 - 323 páginas |
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Página 1
... sodium or potassium upon water . Na + H2O = NaHO + H . A fragment of sodium or potassium , about the size of a pea , is thrown upon cold water contained in a soup plate . The plate should be instantly covered by a glass bell - jar when ...
... sodium or potassium upon water . Na + H2O = NaHO + H . A fragment of sodium or potassium , about the size of a pea , is thrown upon cold water contained in a soup plate . The plate should be instantly covered by a glass bell - jar when ...
Página 6
... sodium hydrate upon zinc . Zn + 2NaHO = ZnNa2O2 + H2 . Zinc filings are boiled with a strong solution of caustic soda in a small flask fitted with a delivery tube : a slow stream of hydrogen will be evolved . Aluminium filings or ...
... sodium hydrate upon zinc . Zn + 2NaHO = ZnNa2O2 + H2 . Zinc filings are boiled with a strong solution of caustic soda in a small flask fitted with a delivery tube : a slow stream of hydrogen will be evolved . Aluminium filings or ...
Página 10
... sodium oleate and 400 c.c. distilled water are placed in a stoppered bottle , and allowed to stand until the oleate has dissolved , without warming : 100 c.c. of pure glyce- rine are then added , and the mixture after being well shaken ...
... sodium oleate and 400 c.c. distilled water are placed in a stoppered bottle , and allowed to stand until the oleate has dissolved , without warming : 100 c.c. of pure glyce- rine are then added , and the mixture after being well shaken ...
Página 22
... sodium hydrate to absorb the hydrochloric acid which is formed in the reaction , and the oxygen may be collected over the pneumatic trough . It is desirable to encase the porce- lain tube in a thin sheet - iron tube , which makes if ...
... sodium hydrate to absorb the hydrochloric acid which is formed in the reaction , and the oxygen may be collected over the pneumatic trough . It is desirable to encase the porce- lain tube in a thin sheet - iron tube , which makes if ...
Página 23
... sodium chloride which is formed ; the wide piece may be blown on to a narrow tube as shown in the figure , or a thistle funnel may be sub- stituted . 35. By the action of cobaltic oxide on a solution of bleaching powder . ( 1 ) ( 2 ) Ca ...
... sodium chloride which is formed ; the wide piece may be blown on to a narrow tube as shown in the figure , or a thistle funnel may be sub- stituted . 35. By the action of cobaltic oxide on a solution of bleaching powder . ( 1 ) ( 2 ) Ca ...
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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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