Chemical Lecture Experiments: Non-metallic ElementsLongmans, Green, and Company, 1905 - 347 páginas |
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Página 39
... eudiometer . A mixture of oxygen and hydrogen , roughly in the proportion of two volumes of hydrogen to one volume of oxygen , is made in a glass bell - jar , fitted with a stop- cock at the top , and floating in a wide glass jar . ( It ...
... eudiometer . A mixture of oxygen and hydrogen , roughly in the proportion of two volumes of hydrogen to one volume of oxygen , is made in a glass bell - jar , fitted with a stop- cock at the top , and floating in a wide glass jar . ( It ...
Página 40
... eudiometer , which is then removed from the bell - jar . The cock of the gas - holder should be opened before the one on the eudiometer , to prevent the pos- sibility of air being drawn in , and this second cock should be turned very ...
... eudiometer , which is then removed from the bell - jar . The cock of the gas - holder should be opened before the one on the eudiometer , to prevent the pos- sibility of air being drawn in , and this second cock should be turned very ...
Página 41
... eudiometer will occupy two volumes . The vapour of amyl alcohol which is passing through the jacket tube during the experiment may be generated by boiling the liquid in a glass flask , fitted with a cork and delivery tube . The ...
... eudiometer will occupy two volumes . The vapour of amyl alcohol which is passing through the jacket tube during the experiment may be generated by boiling the liquid in a glass flask , fitted with a cork and delivery tube . The ...
Página 42
... eudiometer ( fig . 36 ) . The eudio- meter is held in a clamp which works up and down an upright support by means of a rack and pinion , and it dips into a tall cylinder mer- cury trough , at the bottom of which a caout- chouc pad is ...
... eudiometer ( fig . 36 ) . The eudio- meter is held in a clamp which works up and down an upright support by means of a rack and pinion , and it dips into a tall cylinder mer- cury trough , at the bottom of which a caout- chouc pad is ...
Página 43
... eudiometer is then lowered down to the pad , the marker remaining stationary , and the spark passed . The tube is then raised until the column of mercury is the same height above the level of that in the trough as it was before , which ...
... eudiometer is then lowered down to the pad , the marker remaining stationary , and the spark passed . The tube is then raised until the column of mercury is the same height above the level of that in the trough as it was before , which ...
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Términos y frases comunes
allowed ammonia ammonium chloride apparatus beaker bell-jar blown bromine bubble bulb Bunsen flame burning caoutchouc tube carbon dioxide carbon disulphide cell centimetres long charcoal chlorate chlorine coal-gas cock colour combustion condensed containing convenient cool copper cork cork carrying cubic centimetres cylinder delivery tube dilute dipping dish dropping funnel drops electrodes ether eudiometer evolved experiment filled fitted fragment freezing mixture funnel gases gently warming glass tube grams heated hydrochloric acid ignited inflamed introduced iodide iodine lamp limb Liquefaction of Gases liquid magnesium means mercury metal metres millimetres nitric nitrogen nitrous oxide obtained oxygen ozone paper passed peroxide phosphorus piece of caoutchouc 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 test tube vapour vessel volume Woulf's bottle