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analitik kimya temelleri
Apr 10, 2016
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Cute Dragon - more easy printing bySebastian_v650is licensed under theCreative Commons - Attribution - Non-Commercial - Share Alikelicense.
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Analitik Kimya Temelleri.pdf

720c5d9bec 54 This is a downloadable PDF from the library website. It is about a chemical process that can purify a metal, for example converting copper into silver. The reader should know that if the reaction took place in a laboratory it would involve two different containers of materials and two reactions taking place at essentially the same time. The result would be silver sulfide, which has an atomic weight of 107.7 grams/mole and is therefore heavier than silver (atomic weight 92). The article explains how to avoid some problems with reactions like this one by doing them slowly inside of glass containers or by using closed reactors instead of open ones. Anyone who did the experiment should have finished the experiment before the article. The experiment would involve putting some copper iodide in a flask, adding some silver nitrate solution, and then heating up the mixture. It is then mentioned that the amount of silver that comes out of this process might be too much to use by itself. It could however be used for something else if one cooled it down fast enough. It could also be put into a crucible to get it pure by melting it down in order to obtain something like silver bromide (an element). To do this, one would have to take the ingot out of the crucible and put it in a machine found in the laboratory that would then crush it into small pieces. The resulting mass is then placed into a retort to get it purer. This is repeated until there are no more impurities in the silver bromide. The article explains how silicon reacts with water at high temperatures. This can be very dangerous because when they react they have to have oxygen present in the air or else there will be nothing for them to burn. If they burn without air present, then all of the oxygen in them will boil away and they will turn into silicon oxide which is not dangerous at all. The article, once again, explains how to do this chemical process safely. It shows different ways to prevent over-oxidization of the silicon because by overheating the oxygen will boil off into it. If one was to use an open flask or a piece of glass that allows air in then there is no need for any kind of safety precautions to be taken. If one were to use a glovebox instead, then there are some safety precautions that have to be taken by wearing rubber gloves and covering the opening with cardboard. The author recommends using an atmosphere of oxygen instead because it is safer for this kind of experiment because it will not trigger any fires in the gas line, but it will make the oxidation process go faster. This is accessed from the library website. It is the second act of a play called "The Chemist's Apprentice" written by Johann Wolfgang von Goethe. The play was first presented in 1773. The plot is about a man who becomes friends with an old man who keeps talking to him about chemistry and other scientific topics until one day he discovers that the old man is not a real person at all, but a statue of a 16th-century alchemist. The plot sets up the old alchemist as someone who has not been wrong yet about anything he has tried to do and makes him even more arrogant as a result.

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