strength versus concentration
What strength versus concentration means in Chemistry A-Level, as defined for AQA.
Definitions of strength versus concentration
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Reference: AQA
Strength is about the fraction of protons given up, while concentration is about how many moles are in a cubic decimetre.
Strength and concentration are separate ideas, so a concentrated weak acid can have a lower pH than a dilute strong one.
Topics that use strength versus concentration
- Brønsted–Lowry acid–base equilibria in aqueous solution (A-level only) (AQA A-Level)
- Weak acids and bases, Ka, for weak acids (A-level only) (AQA A-Level)
Related terms
- position of equilibrium
- approximations
- Brønsted–Lowry base
- comparing rates
- conjugate acid
- acid dissociation constant
- amphoteric water
- Brønsted–Lowry acid
Using strength versus concentration in the exam
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