Acids, Alkalis And Titrations
Gbogbo ọrọ náà
Every liquid you encounter, from lemon juice to bleach, sits somewhere on the pH scale. Knowing whether a substance is acidic, neutral, or alkaline is fundamental to chemistry, medicine, agriculture, and everyday life. Indicators give you a quick visual answer, while the pH scale puts a precise number on it.
In this lesson you will learn how to use litmus, phenolphthalein, and methyl orange to distinguish acids from alkalis, understand the pH scale from 0 to 14, use universal indicator to estimate pH, and discover why acids and alkalis behave the way they do at the ionic level. You will also see how neutralisation reactions work and why they always produce water.
Ebumnobi
- Describe the use of litmus, phenolphthalein and methyl orange to distinguish between acidic and alkaline solutions
- Understand how to use the pH scale to classify solutions
- Describe the use of universal indicator to measure the approximate pH value of an aqueous solution
- Know that acids in aqueous solution are a source of hydrogen ions and alkalis are a source of hydroxide ions
- Know that alkalis can neutralise acids
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, Alkalis And Titrations. 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.
- What colour does phenolphthalein turn in an alkaline solution? A) Red B) Yellow C) Pink D) Colourless Answer: C
- A solution has a pH of 3. Which statement is correct? A) The solution is a strong alkali B) The solution is neutral C) The solution is acidic D) The solution is a weak alkali Answer: C
- Which ions are responsible for making a solution acidic? A) Sodium ions B) Hydroxide ions C) Hydrogen ions D) Chloride ions Answer: C
- Which indicator is most suitable for use in a titration? A) Litmus B) Universal indicator C) pH paper D) Phenolphthalein Answer: D
- What is the pH of a neutral solution? A) 0 B) 1 C) 7 D) 14 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, Alkalis And Titrations? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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