Exercises in Practical Chemistry Vol 1 Elementary Exercises
Exercises in Practical Chemistry Vol 1 Elementary Exercises
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In our eReader you can find the full English version of the book. Read Exercises in Practical Chemistry Vol 1 Elementary Exercises Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Exercises in Practical Chemistry Vol 1 Elementary Exercises
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Take a large test-tube, about 2*5 cm. In diameter and 16 or 1 8 cm. In length ; adapt to it a cork fitted with an elbow tube and right-angled delivery tube connected by a cork joint, such as was used in the preparation of carbon dioxide, p. 155, and support it in an inclined position in a Bunsen's holder thus, Fig. 58.
H 3 P0 3 .
208 IODIDES.
Weigh out half a gramme Of red phosphorus in powder 1, and transfer it to the test-tube. Pour upon it i c. C. (not more) of water, and then (having previo...usly placed a beaker of cold water within reach, ) add 6 grms. Of iodine, and mix the whole by shaking the tube, cooling it as soon as the action begins by dipping it into the beaker of water. The iodine acts on the phosphorus readily but not violently if the temperature is kept down, arid the water decomposes the phosphorus tri-iodide, as above explained. We thus obtain a very strong solution of hydrogen iodide, from which the gas will be given off abundantly when it is very gently heated.
Replace the cork with delivery tube, and re-adjust the ap- paratus in the holder, placing under the end of the delivery tube a small gas bottle covered with a card.
What to read after Exercises in Practical Chemistry Vol 1 Elementary Exercises?
You can find similar books in the "Read Also" column, or choose other free books by A G Augustus George Vernon Harcourt to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Take a large test-tube, about 2*5 cm. In diameter and 16 or 1 8 cm. In length ; adapt to it a cork fitted with an elbow tube and right-angled delivery tube connected by a cork joint, such as was used in the preparation of carbon dioxide, p. 155, and support it in an inclined position in a Bunsen's holder thus, Fig. 58.
H 3 P0 3 .
208 IODIDES.
Weigh out half a gramme Of red phosphorus in powder 1, and transfer it to the test-tube. Pour upon it i c. C. (not more) of water, and then (having previo...usly placed a beaker of cold water within reach, ) add 6 grms. Of iodine, and mix the whole by shaking the tube, cooling it as soon as the action begins by dipping it into the beaker of water. The iodine acts on the phosphorus readily but not violently if the temperature is kept down, arid the water decomposes the phosphorus tri-iodide, as above explained. We thus obtain a very strong solution of hydrogen iodide, from which the gas will be given off abundantly when it is very gently heated.
Replace the cork with delivery tube, and re-adjust the ap- paratus in the holder, placing under the end of the delivery tube a small gas bottle covered with a card.
What to read after Exercises in Practical Chemistry Vol 1 Elementary Exercises?
You can find similar books in the "Read Also" column, or choose other free books by A G Augustus George Vernon Harcourt to read onlineMoreLess
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