Chemistry A-Level
Extension to Ka and Kw
What Extension to Ka and Kw means in Chemistry A-Level, as defined for OCR.
Definition of Extension to Ka and Kw
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Reference: OCR
The same construction transfers to Ka for a weak acid, written as [H⁺][A⁻]/[HA] from the dissociation equation, and to Kw = [H⁺][OH⁻].
Topics that use Extension to Ka and Kw
- How far? (OCR A-Level)
Related terms
- Constant temperature and constant titre
- Conversion between moles, concentration and partial pressure
- Determination of units by unit cancellation
- Effect of temperature on equilibrium position
- Equilibrium constant
- Equilibrium constant expressions for Kc and Kp
- Equilibrium constant Kc
- Equilibrium expressions from balanced equations
Using Extension to Ka and Kw in the exam
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