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Cambridge IGCSE Chemistry practice

Paper 3 structured question: The mole and the Avogadro constant

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The mole and the Avogadro constant

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Paper 3Theory (Core)1 marks

Concentration is a key concept in chemistry that helps in understanding solutions.

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Concentration Units

Concentration can be expressed in grams per cubic decimeter (g/dm³) or moles per cubic decimeter (mol/dm³).

  1. a

    State the two units used to express concentration.

    Aim for approximately 1 distinct marking point.

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Paper 3 structured question: The mole and the Avogadro constant

Paper 3Theory (Core)1 marks

Description

Concentration Measurement

Concentration can be measured in grams per cubic decimeter (g/dm³) or moles per cubic decimeter (mol/dm³).

  1. a

    Identify the unit that measures the mass of solute in a solution.

    Aim for approximately 1 distinct marking point.

    [1]