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
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
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
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
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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