Preparation Of Salts
Bayani Gaba-gaba
Salts are everywhere in chemistry, from the fertilisers that feed crops to the blue copper sulfate crystals grown in class. Making a pure, dry sample of a salt is a genuine craft, and the method you choose hangs on one question: is the salt you want soluble or insoluble? Get that right and the whole preparation falls into place.
In this lesson you will learn the standard routes to soluble salts, using an acid with an alkali, a metal, an insoluble base or a carbonate, and how precipitation makes insoluble salts. You will use the solubility rules to predict the right method, and learn what hydrated, anhydrous and water of crystallisation mean.
Manufura
- Describe the preparation, separation and purification of soluble salts by reaction of an acid with: (a) an alkali by titration (b) excess metal (c) excess insoluble base (d) excess insoluble carbonate.
- Describe the general solubility rules for salts: (a) s odium, potassium and ammonium salts are soluble (b) nitrates are soluble (c) chlorides are soluble, except lead and silver (d) sulfates are soluble, except barium, calcium and lead (e) carbonates are insoluble, except sodium, potassium and ammonium (f) hydroxides are insoluble, except sodium, potassium, ammonium and calcium (partially).
- Define a hydrated substance as a substance that is chemically combined with water and an anhydrous substance as a substance containing no water.
- [Supplement] Describe the preparation of insoluble salts by precipitation.
- [Supplement] Define the term water of crystallisation as the water molecules present in hydrated crystals, including CuSO •5H O and CoCl •6H O 4 2 2 2.
Darasin Sauti
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Taswirar tunani
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Bude taswirar tunani a cikin manhaja
Katunan tunawa
Gwaji mai sauri kan abin da ake jarraba a wannan batu.
Yi atisayen wadannan katuna a cikin manhaja
Takardar Darasi
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Nazarin Darasi
Barka da kammala darasi akan Preparation Of Salts. Yanzu da kuka bincika mahimman raayoyi da raayoyi, lokaci yayi da zaku gwada ilimin ku. Wannan sashe yana ba da ayyuka iri-iri Tambayoyin da aka tsara don ƙarfafa fahimtar ku da kuma taimaka muku auna fahimtar ku game da kayan.
Za ka gamu da haɗe-haɗen nau'ikan tambayoyi, ciki har da tambayoyin zaɓi da yawa, tambayoyin gajeren amsa, da tambayoyin rubutu. Kowace tambaya an ƙirƙira ta da kyau don auna fannoni daban-daban na iliminka da ƙwarewar tunani mai zurfi.
Yi wannan ɓangaren na kimantawa a matsayin wata dama don ƙarfafa fahimtarka kan batun kuma don gano duk wani yanki da kake buƙatar ƙarin karatu. Kada ka yanke ƙauna da duk wani ƙalubale da ka fuskanta; maimakon haka, ka kallesu a matsayin damar haɓaka da ingantawa.
- How is a soluble salt made from an acid and an alkali? A. precipitation B. titration C. adding excess metal D. electrolysis Answer: B
- Which method is used to prepare an insoluble salt? A. titration B. adding excess carbonate C. precipitation D. distillation Answer: C
- According to the solubility rules, which chloride is insoluble? A. sodium chloride B. potassium chloride C. silver chloride D. ammonium chloride Answer: C
- Which sulfate is insoluble? A. sodium sulfate B. barium sulfate C. potassium sulfate D. ammonium sulfate Answer: B
- What term describes a substance containing no water of crystallisation? A. hydrated B. anhydrous C. aqueous D. saturated Answer: B
Yi aikin wadannan tambayoyi a cikin manhaja
Yi aikin wadannan tambayoyi a cikin manhaja
Littattafan da ake ba da shawarar karantawa
Ƙarin koyo daga tushe na buɗe
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Sashen littafi
Classifying Chemical Reactions
Define three common types of chemical reactions (precipitation, acid-base, and oxidation-reduction)
"Chemistry: Classifying Chemical Reactions" by OpenStax, OpenStax, Rice University, licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Source: https://openstax.org/books/chemistry/pages/4-2-classifying-chemical-reactions. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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Yi Aikin Tambayoyin Gwaji
Kana son yin aikin tambayoyin gwaji kan Preparation Of Salts? Sauke manhajar Green Bridge CBT don samun tambayoyin gwaji da cikakkun jarrabawa akan wannan batu.
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