Skip to content
    Chemistry A-Level

    Percentage yield

    What Percentage yield means in Chemistry A-Level, as defined for OCR.

    Definitions of Percentage yield

    Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.

    Check what you remember

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

    Reference: OCR

    The actual yield divided by the theoretical yield and multiplied by 100, comparing the amount actually obtained with the maximum predicted.
    OCR · Amount of substance
    Measures how much product is actually obtained, and is distinguished from atom economy.
    OCR · Amount of substance

    Topics that use Percentage yield

    Related terms

    Using Percentage yield 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