Chemistry A-Level
neutrality and temperature
What neutrality and temperature means in Chemistry A-Level, as defined for AQA.
Definition of neutrality and temperature
Check what you remember
Read the wording for your board, then hide it and explain neutrality and temperature in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
Neutrality means [H⁺] = [OH⁻], and the concentration at which that happens depends on Kw, which rises as temperature rises, so pH 7 is neutral only at 298 K.
Topics that use neutrality and temperature
- Definition and determination of pH (A-level only) (AQA A-Level)
Related terms
- diprotic acids
- logarithm and antilogarithm
- strong acid pH
- complete dissociation
- factor of ten per unit
- logarithmic scale
- need for a log scale
- pH definition
Using neutrality and temperature in the exam
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