Chemical News and Journal of Industrial Science, Tomy 107-108Chemical news office., 1913 |
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Strona 7
... experiments the brass was heated for one or two hours , and it lost under these conditions from 10 to 20 per cent of its weight . Further experiments were made , in which the brass was heated for three , six , nine , and twelve hours ...
... experiments the brass was heated for one or two hours , and it lost under these conditions from 10 to 20 per cent of its weight . Further experiments were made , in which the brass was heated for three , six , nine , and twelve hours ...
Strona 25
... experiments are controverted soon after their publication . If any mistakes , as so easily happens in chemical researches , be committed in the experiments themselves , or if a false theory be founded upon them , the error is not ...
... experiments are controverted soon after their publication . If any mistakes , as so easily happens in chemical researches , be committed in the experiments themselves , or if a false theory be founded upon them , the error is not ...
Strona 26
... experiments were directed by the consideration that possibly the unknown element might be separated from the metallic elements combined with it either by chlorine or by oxygen . He continues , " In selecting com- pounds for experiments ...
... experiments were directed by the consideration that possibly the unknown element might be separated from the metallic elements combined with it either by chlorine or by oxygen . He continues , " In selecting com- pounds for experiments ...
Strona 27
... experiments were with the view of testing the effect of temperature on the cells . If we plot concentration against E.M.F. for two dif ferent temperatures in ordinary concentration cells , keeping the concentration the same on one side ...
... experiments were with the view of testing the effect of temperature on the cells . If we plot concentration against E.M.F. for two dif ferent temperatures in ordinary concentration cells , keeping the concentration the same on one side ...
Strona 38
... experiments used a bath of acetone holding solid carbon dioxide in suspension , with which a temperature of -80 ° could be obtained . Moissan thus describes an experiment : - " While the hydrofluoric acid was being prepared the platinum ...
... experiments used a bath of acetone holding solid carbon dioxide in suspension , with which a temperature of -80 ° could be obtained . Moissan thus describes an experiment : - " While the hydrofluoric acid was being prepared the platinum ...
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