Chemical News and Journal of Industrial Science, Tomy 119-120Chemical news office., 1919 |
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Strona 3
... hydrogen sulphide . The filtrate was freed from hydrogen sulphide by boiling , and the rare earths were repeated until the second fractional precipitate of hydroxides of the earths was obtained . This precipitate was purified as before ...
... hydrogen sulphide . The filtrate was freed from hydrogen sulphide by boiling , and the rare earths were repeated until the second fractional precipitate of hydroxides of the earths was obtained . This precipitate was purified as before ...
Strona 16
... hydrogen molecule consists of two positively charged hydrogen nuclei with two electrons rotating around the line joining the centres of the nuclei ( Lewis , 1919 , vol . iii . , p . 194 ) . Thus for the carbon linking we can assume the ...
... hydrogen molecule consists of two positively charged hydrogen nuclei with two electrons rotating around the line joining the centres of the nuclei ( Lewis , 1919 , vol . iii . , p . 194 ) . Thus for the carbon linking we can assume the ...
Strona 17
... hydrogen , & c . , at the ethylenic or acetylenic linking may be treated in the same manner , and it will be seen that the reaction will be more likely to take place in the trans - position than in the cis - position , on account of the ...
... hydrogen , & c . , at the ethylenic or acetylenic linking may be treated in the same manner , and it will be seen that the reaction will be more likely to take place in the trans - position than in the cis - position , on account of the ...
Strona 18
... hydrogen and oxygen gases , in order to establish thoroughly the laws governing the reaction under various conditions as regards volume of the reacting vessel , pressure of the gases , con- centration of emanation , temperature , and ...
... hydrogen and oxygen gases , in order to establish thoroughly the laws governing the reaction under various conditions as regards volume of the reacting vessel , pressure of the gases , con- centration of emanation , temperature , and ...
Strona 27
... hydrogen and a mass of 12 . In 1914 a mathematical proof that an atom of nitrogen is constituted by the union of two atoms of hydrogen with one of carbon was sent to the Nobel Institute of Sweden . If Sir E. Rutherford's deduction turns ...
... hydrogen and a mass of 12 . In 1914 a mathematical proof that an atom of nitrogen is constituted by the union of two atoms of hydrogen with one of carbon was sent to the Nobel Institute of Sweden . If Sir E. Rutherford's deduction turns ...
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