Acids, Bases And Salt Preparations
Gbogbo ọrọ náà
Acids react with metals, bases, and carbonates to produce salts, and knowing the rules that govern these reactions lets you predict products, write balanced equations, and prepare pure samples of any salt you need. Salt preparation is one of the most practical skills in IGCSE chemistry.
In this lesson you will deepen your understanding of acids and bases through the Bronsted-Lowry (proton transfer) model, learn solubility rules for predicting which salts dissolve and which precipitate, and work through the step-by-step preparation of a pure, dry sample of hydrated copper(II) sulfate crystals.
Ebumnobi
- Know the general rules for predicting the solubility of ionic compounds in water
- Understand acids and bases in terms of proton transfer
- Understand that an acid is a proton donor and a base is a proton acceptor
- Describe the reactions of hydrochloric acid, sulfuric acid and nitric acid with metals, bases and metal carbonates to form salts
- Know that metal oxides, metal hydroxides and ammonia can act as bases
- Describe an experiment to prepare a pure, dry sample of a soluble salt starting from an insoluble reactant
- Prepare a sample of pure, dry hydrated copper(II) sulfate crystals starting from copper(II) oxide
Maapụ uche
E seela isiokwu a ka ị hụ otu echiche si ejikọta.
Mepee maapụ uche na ngwa
Kaadị ncheta
Omume ncheta ngwa ngwa n'ihe a na-anwale n'isiokwu a.
Mee omume kaadị ndị a na ngwa
Akwụkwọ Ọmụmụ
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Nnyocha Ọmụmụ
Ekele diri gi maka imecha ihe karịrị na Acids, Bases And Salt Preparations. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- In the Bronsted-Lowry model, an acid is defined as a: A) Proton acceptor B) Proton donor C) Electron donor D) Electron acceptor Answer: B
- Which of the following salts is insoluble in water? A) Sodium chloride B) Potassium nitrate C) Barium sulfate D) Ammonium carbonate Answer: C
- When a metal carbonate reacts with an acid, the products are: A) Salt + water B) Salt + hydrogen C) Salt + water + carbon dioxide D) Salt + oxygen Answer: C
- In the preparation of a soluble salt from an insoluble base, why is the base added in excess? A) To make the reaction go faster B) To ensure all the acid has reacted C) To produce more crystals D) To change the colour of the solution Answer: B
- Which of the following can act as a base? A) Hydrochloric acid B) Sodium chloride C) Copper(II) oxide D) Sulfuric acid Answer: C
Rue ajuju ndi a n'ime ngwa ahu
Rue ajuju ndi a n'ime ngwa ahu
Akwụkwọ A Na-atụ Aro
Mụtakwuo ihe site na isi mmalite mepere emepe
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Akụkụ akwụkwọ
Brønsted-Lowry Acids and Bases
Identify acids, bases, and conjugate acid-base pairs according to the Brønsted-Lowry definition
"Chemistry: Brønsted-Lowry Acids and Bases" 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/14-1-bronsted-lowry-acids-and-bases. Access for free at https://openstax.org/books/chemistry/pages/1-introduction
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Akụkụ akwụkwọ
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
Ndị otu ndị ọzọ bipụtara ha n'okpuru ikike mepere emepe, anyị na-ekele ha dị ka ha si chọọ. Njikọ na-emepe saịtị ha.
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Acids, Bases And Salt Preparations? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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