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In chemistry, what is an alkali?
In chemistry, what is an alkali?
An alkali is a basic, ionic salt of an alkali metal or an alkaline earth metal, or it can be defined as a base that dissolves in water.
What is the pH of a solution of a soluble base?
What is the pH of a solution of a soluble base?
A solution of a soluble base has a pH greater than 7.0.
What is the etymology of the word 'alkali'?
What is the etymology of the word 'alkali'?
The word 'alkali' is derived from Arabic al qalīy (or alkali), meaning the calcined ashes, referring to the original source of alkaline substances.
What is the composition of potash, derived from burned plant ashes?
What is the composition of potash, derived from burned plant ashes?
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What was traditionally used in conjunction with animal fats to produce soft soaps?
What was traditionally used in conjunction with animal fats to produce soft soaps?
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Study Notes
Alkalis
- Alkalis are soluble bases.
- The pH of a solution of a soluble base is greater than 7.
- 'Alkali' comes from the Arabic word 'al-qili', which means 'ashes'.
- Potash, derived from burned plant ashes, is primarily composed of potassium carbonate (K₂CO₃).
- Traditionally, potash was combined with animal fats to produce soft soaps.
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Description
Test your knowledge of alkali and alkaline chemistry with this quiz. Learn about the definition of alkali, its properties, and its common usage in English.
