A treatise on chemistry. Vol. 1, The non-metallic elements / by Sir H.E. Roscoe & C. Schorlemmer ...

  • Roscoe, Henry E. (Henry Enfield), 1833-1915.
Date:
1881
Catalogue details

Licence: Public Domain Mark

Credit: A treatise on chemistry. Vol. 1, The non-metallic elements / by Sir H.E. Roscoe & C. Schorlemmer ... Source: Wellcome Collection.

Provider: This material has been provided by University of Bristol Library. The original may be consulted at University of Bristol Library.

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    (1) c _ 0-7904 (c - &) = 0-59 vols, of nitrogen. (2) {d — e) = ll'ft vols, of carbon dioxide. (M) (c _ d). = 39-0 vols, of contraction. (4) a _ 0-59 = 24'5 vols, of combustible gas. And these values calculated for 91-25 volumes become— Volume of nitrogen -. 2-15 = A. „ combustible gases . . 89-11 = B. „ carbon dioxide formed . 42 90 = C. „ contraction .... 141-79 = D. From these data the volumes of the three combustible gases, hydrogen, marsh gas, and carbon monoxide, can be obtained :— Let X signify the unknow^n volume of hydrogen. „ y „ „ „ marsh gas. „ z „ „ „ carbon monoxide. Then (1) a; = 5-C = 46-20. (2) ?/ = |C + |-i)-5=34-02. (3) z = i G+ B-i D = 8-88. It only no-w remains to determine the composition of the heavy hydrocarbons, the volume of which, absorbed by sulphuric acid, -was 5 09. For this purpose the following analysis was made of a portion of the gas, from which the carbon monoxide and oxygen were removed, but in which the heavy hydrocarbons are still contained. At 0° and one meter. Volume of gas employed 21-5 After addition of oxygen 77-3 After addition of air 200-4 After the explosion 166-2 After absorption of the carbon dioxide . . . 152-9 After addition of hydrogen 351-3 After the second explosion 184-8 Hence the above volume of gas yielded 13-3 volumes of carbon dioxide, and 34-2 volumes of contraction on 96-34 volumes in Column II. of the table, yield— Carbon dioxide ... 59 60 volumes. Contraction .... 153-24 „