Laboratory Studies in Chemistry
Laboratory Studies in Chemistry
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In our eReader you can find the full English version of the book. Read Laboratory Studies in Chemistry 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 Laboratory Studies in Chemistry
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Why did the sodium chloride separate while the liquid was hot ? Why did the potassium nitrate remain dissolved until the liquid cooled ?
Does your potassium nitrate contain any sodium chloride as an impurity (look again at the solubility curve for sodium chloride)? Verify your prediction by dissolving 0. 5 c. C. Of your potassium nitrate in distilled water and testing the solu- tion for chloride with one drop of silver nitrate solution. Eeserve. Dissolve the rest of your potassium nitrate in 10... c. C. Hot water and allow the solution to cool and crystallize. Test again with silver nitrate. Is the second crop of crystals purer than the first ? Why ?
EXERCISE 67 PREPARATION OF SODIUM NITRITE Apparatus. Iron dish. Beaker. Evaporating dish. Funnel. Glass rod. Two small test tubes. Trip scales.
Materials. Sodium nitrate. Lead foil or test lead. Filters. Method. See textbook, page 305.
Melt 10 grams sodium nitrate in an iron dish and heat it strongly (take special care not to spill any of the melted sub- stance upon the table, since it would burn deeply into the wood).
What to read after Laboratory Studies in Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Robert Hart Bradbury to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
Why did the sodium chloride separate while the liquid was hot ? Why did the potassium nitrate remain dissolved until the liquid cooled ?
Does your potassium nitrate contain any sodium chloride as an impurity (look again at the solubility curve for sodium chloride)? Verify your prediction by dissolving 0. 5 c. C. Of your potassium nitrate in distilled water and testing the solu- tion for chloride with one drop of silver nitrate solution. Eeserve. Dissolve the rest of your potassium nitrate in 10... c. C. Hot water and allow the solution to cool and crystallize. Test again with silver nitrate. Is the second crop of crystals purer than the first ? Why ?
EXERCISE 67 PREPARATION OF SODIUM NITRITE Apparatus. Iron dish. Beaker. Evaporating dish. Funnel. Glass rod. Two small test tubes. Trip scales.
Materials. Sodium nitrate. Lead foil or test lead. Filters. Method. See textbook, page 305.
Melt 10 grams sodium nitrate in an iron dish and heat it strongly (take special care not to spill any of the melted sub- stance upon the table, since it would burn deeply into the wood).
What to read after Laboratory Studies in Chemistry?
You can find similar books in the "Read Also" column, or choose other free books by Robert Hart Bradbury to read onlineMoreLess
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