This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...the equation 2 H2 + 02 = 2 H2 O 4 vols. + 2 vols. -= 4 vols. it is evident that 150 cubic centimetres of oxygen would require 300 cubic centimetres of hydrogen, and yield 300 cubic centimetres of steam, 100 cubic centimetres of hydrogen remaining in excess. 3. 100 cubic centimetres of ammonia gas are completely ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt: ...the equation 2 H2 + 02 = 2 H2 O 4 vols. + 2 vols. -= 4 vols. it is evident that 150 cubic centimetres of oxygen would require 300 cubic centimetres of hydrogen, and yield 300 cubic centimetres of steam, 100 cubic centimetres of hydrogen remaining in excess. 3. 100 cubic centimetres of ammonia gas are completely decomposed by a series of electric sparks, yielding 200 cubic centimetres of mixed hydrogen and nitrogen: an excess of oxygen is next added, when the volume of mixed gases is found to amount to 290 cubic centimetres. The mixture is now exploded, when 65 cubic centimetres of gas remain. Show from these data that the symbol for ammonia is NH3. The total volume of the mixed gases before the explosion was 290 cubic centimetres; after the explosion 65 cubic centimetres remain. Hence (290--65) = 225 cubic centimetres of oxygen and hydrogen have disappeared to form water, and two-thirds of this contraction gives the amount of hydrogen in the mixture, and hence in the 200 cubic centimetres resulting from the decomposition of the 100 cubic centimetres of ammonia gas. of 225 = 150 cubic centimetres. Hence in the 200 cubic centimetres of the gas, 150 cubic centimetres were hydrogen, the remaining 50 being nitrogen. The gases are therefore mixed in the proportion of 1 volume of nitrogen to 3 volumes of hydrogen, and hence the symbol for ammonia is NH3. QUESTIONS.! 192. 20 litres of hydrogen are mixed with 10 litres of chlorine. Which gas remains in excess? How many litres of hydrochloric acid are produced? f 193. One cubic foot of hydriodic acid is decomposed by an excess of bromine. How many cubic feet of hydrobromic acid are formed? f 194. The iodine in 100 volumes of hydriodic acid is liberated in succession by chlorine and by oxygen. How many vol...
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