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Learning objective

Explain that the molecular formula of a compound indicates the quantity and types of different atoms in a single molecule.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistrySubject contentCore content

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Quick explanation

Explain that the molecular formula of a compound indicates the quantity and types of different atoms in a single molecule

  • This point belongs to Formulae, especially Formulae outcomes.
  • You need to be able to explain that the molecular formula of a compound indicates the quantity and types of different atoms in a single molecule.
  • The key ideas to know are Define.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Define

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This objective helps connect Formulae outcomes to exam-style questions, flashcards, and revision notes for Formulae.

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Paper 3 structured question: Formulae

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Description

Molecular Formula Example

The molecular formula of a compound is represented as CxHyOz, where x, y, and z are integers that indicate the number of carbon, hydrogen, and oxygen atoms, respectively.

  1. a

    State the molecular formula for a compound that contains 3 carbon atoms, 8 hydrogen atoms, and 2 oxygen atoms.

    Aim for approximately 1 distinct marking point.

    [1]
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