pH calculation from calcium hydroxide (Ca(OH)₂)
Calcium hydroxide is a strong base that dissociates completely in water:
Given is a net ion charge of:
Since each unit of Ca(OH)₂ provides two OH⁻ ions, the result is:
From this, we calculate the pOH value:
And finally:
Ergebnis: Die Lösung hat einen pH-Wert von ungefähr 12.43.
Quelle: Atkins & de Paula – Physical Chemistry, 12th Ed.
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Kontext:
- Mol ↔ ppm
- Orders of Magnitude
- ppm to moles
- Example: Calculation of moles and grams of boron in boric acid
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- Grams to Moles
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