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A LevelChemistryCIERevision Notes3. Organic Chemistry3.1 An Introduction to AS Level Organic Chemistry3.1.4 Molecular & Empirical Formulae

Molecular & Empirical Formulae (CIE A Level Chemistry)

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Francesca

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Francesca

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Molecular & Empirical Formulae of Organic Compounds

  • The molecular formula shows the number and type of each atom in a molecule
    • Eg. the molecular formula of ethanoic acid is C2H4O2

  • The empirical formula shows the simplest whole number ratio of the elements present in one molecule of the compound
    • Eg. the empirical formula of ethanoic acid is CH2O

Worked example: Deducing molecular & empirical formulae

3-1-an-introduction-to-as-level-organic-chemistry-answers-worked-example---deducing-molecular-and-empirical-formulae_2

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    Francesca

    Author: Francesca

    Expertise: Head of Science

    Fran studied for a BSc in Chemistry with Forensic Science, and since graduating taught A level Chemistry in the UK for over 11 years. She studied for an MBA in Senior Leadership, and has held a number of roles during her time in Education, including Head of Chemistry, Head of Science and most recently as an Assistant Headteacher. In this role, she used her passion for education to drive improvement and success for staff and students across a number of subjects in addition to Science, supporting them to achieve their full potential. Fran has co-written Science textbooks, delivered CPD for teachers, and worked as an examiner for a number of UK exam boards.