Skip to content
    Chemistry A-Level

    logarithm and antilogarithm

    What logarithm and antilogarithm means in Chemistry A-Level, as defined for AQA.

    Definition of logarithm and antilogarithm

    Check what you remember

    Read the wording for your board, then hide it and explain logarithm and antilogarithm in your own words. Rough notes are fine. This is a self-check, with no mark or grade.

    Reference: AQA

    pH = −log₁₀[H⁺] converts concentration of hydrogen ions into pH, and working backwards [H⁺] = 10⁻ᵖᴴ converts pH into concentration.
    AQA · Definition and determination of pH (A-level only) (study guide)

    Topics that use logarithm and antilogarithm

    Related terms

    Using logarithm and antilogarithm in the exam

    Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.

    Practise Chemistry questions

    Create a free account to answer exam-style questions on this topic and get feedback on your answers.

    Start free

    A week of Premium from your first lesson · Then the free plan continues · No card, no charge

    All Chemistry A-Level terms