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Page 36
... large scale ? How is it purified from traces of common phosphorus ? 233. How may amorphous phosphorus be converted into common phosphorus , and vice versâ ? How may these changes be shown on the small scale ? 234. Compare the properties ...
... large scale ? How is it purified from traces of common phosphorus ? 233. How may amorphous phosphorus be converted into common phosphorus , and vice versâ ? How may these changes be shown on the small scale ? 234. Compare the properties ...
Page 39
... large scale from arsenical pyrites , and how is it purified ? 254. How is arsenic obtained in the crystalline and amorphous modifications ? 255. Discuss the various reasons which lead some chemists to class arsenic with the metals , and ...
... large scale from arsenical pyrites , and how is it purified ? 254. How is arsenic obtained in the crystalline and amorphous modifications ? 255. Discuss the various reasons which lead some chemists to class arsenic with the metals , and ...
Page 40
... large scale for obtaining sulphur . 267. Describe fully the changes which occur when sulphur is 40 QUESTIONS ON CHEMISTRY .
... large scale for obtaining sulphur . 267. Describe fully the changes which occur when sulphur is 40 QUESTIONS ON CHEMISTRY .
Page 58
... large scale for softening hard water ? 398. What is the colour of perfectly pure water , and how may this be best seen ? 399. Air usually contains 20 ° 924 volumes oxygen and 70076 volumes nitrogen . Air dissolved in pure water consists ...
... large scale for softening hard water ? 398. What is the colour of perfectly pure water , and how may this be best seen ? 399. Air usually contains 20 ° 924 volumes oxygen and 70076 volumes nitrogen . Air dissolved in pure water consists ...
Page 63
... large scale ? Sketch the plant required . 429. What impurities are usually present in commercial hydrochloric acid , and how is their presence accounted for ? 430. At 12 ° C. and 760 m.m. pressure I gramme water absorbs 0.762 gramme ...
... large scale ? Sketch the plant required . 429. What impurities are usually present in commercial hydrochloric acid , and how is their presence accounted for ? 430. At 12 ° C. and 760 m.m. pressure I gramme water absorbs 0.762 gramme ...
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Questions On Chemistry: A Series Of Problems And Exercises In Inorganic And ... Francis Jones No preview available - 2023 |
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