Chemistry A-Level
logarithmic scale
What logarithmic scale means in Chemistry A-Level, as defined for AQA.
Definition of logarithmic scale
Check what you remember
Read the wording for your board, then hide it and explain logarithmic scale in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A scale used as a measure of hydrogen ion concentration, compressing a huge range by taking a logarithm.
Topics that use logarithmic scale
- Definition and determination of pH (A-level only) (AQA A-Level)
Related terms
- diprotic acids
- logarithm and antilogarithm
- neutrality and temperature
- strong acid pH
- complete dissociation
- factor of ten per unit
- need for a log scale
- pH definition
Using logarithmic scale in the exam
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