If weak acid is diluted with water, then H+ ions concentration will
Correct answer: A. decrease
- A. decrease
- B. gradually decreases then increase
- C. increase
- D. remain same
Explanation
When a weak acid is diluted with water, the concentration of hydrogen ions [𝐻+] will decrease. This is because dilution reduces the overall concentration of all species in the solution, including the hydrogen ions produced by the dissociation of the weak acid.
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About Acids, Bases and Salts
Acid and base behaviour is explained through the Bronsted-Lowry transfer of protons and the Lewis donation or acceptance of electron pairs. The topic includes pH, pOH, ionisation and water equilibrium, plus salt formation and hydrolysis, where a salt solution may become acidic, basic or neutral.
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