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Hydrolysis: 'hydro' = water; 'lysis' = break apart. Literally,
breaking apart in water.
Syllabus reference
Reactivity 3.1.12 - The pH of a salt solution depends on the relative strengths of the parent acid and
base. (HL)
- Construct equations for the hydrolysis of ions in a salt, and predict the effect of each ion on the pH of the salt solution.
Guidance
- Examples should include the ammonium ion NH4+, the carboxylate ion RCOO–, the carbonate ion CO32–, and the hydrogencarbonate ion HCO3–.
- The acidity of hydrated transition element ions and Al3+(aq) is not required.
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