. A course of six lectures on the chemical history of a candle [electronic resource]: to which is added, a lecture on platinum. e last experiment], I shall haveanother vacancy, as you will see by the waterrising. I always have an empty vessel afterthe explosion, because the vapour or gas intowhich that water has been resolved by thebattery explodes under the influence of thespark, and changes into water; and by and byyou will see in this upper vessel some drops ofwater trickling down the sides and collecting atthe bottom. We are here dealing with water entirely,without reference to the atmosph
. A course of six lectures on the chemical history of a candle [electronic resource]: to which is added, a lecture on platinum. e last experiment], I shall haveanother vacancy, as you will see by the waterrising. I always have an empty vessel afterthe explosion, because the vapour or gas intowhich that water has been resolved by thebattery explodes under the influence of thespark, and changes into water; and by and byyou will see in this upper vessel some drops ofwater trickling down the sides and collecting atthe bottom. We are here dealing with water entirely,without reference to the atmosphere. Thewater of the candle had the atmosphere helpingto produce it; but in this way it can be pro-duced independently of the air. Water, there-fore, ought to contain that other substancewhich the candle takes from the air, and DECOMPOSITION OF WATEE. 95 which, combining with the hydrogen, produceswater. Just now you saw that one end of this batterytook hold of the copper, extracting it from thevessel which contained the blue solution. Itwas effected by this wire; and surely we maysay, if the battery has such power with a. Fig. solution which we made and unmade,may we not find that it is possible to splitasunder the component parts of the water, andput them into this place and that place? Sup-pose I take the poles—the metallic ends of thisbattery—and see what will happen with thewater in this apparatus (Fig. 20), where we haveseparated the two ends far apart. I place onehere (at A), and the other there (at b), and I 96 RESULTS OP DECOMPOSITION OP WATEE. have little shelves with holes which I can putupon each pole, and so arrange them thatwhatever escapes from the two ends of thebattery will appear as separate gases; for yousaw that the water did not become vaporous,but gaseous. The wires are now in perfectand proper connection with the vessel contain-ing the water, and you see the bubbles rising:let us collect these bubbles and see what theyare. Here is a glass
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectchemistry, bookyear18
