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Cambridge IGCSE Chemistry practice

Paper 4 structured question: The mole and the Avogadro constant

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The mole and the Avogadro constant

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Paper 4Theory (Extended)1 marks

Understanding the mole and its applications in chemistry.

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The Mole and Avogadro's Constant

The mole is a fundamental unit in chemistry that measures the amount of substance. One mole contains approximately 6.02 x 10²³ particles, known as Avogadro's constant.

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    State the value of Avogadro's constant.

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Paper 4 structured question: The mole and the Avogadro constant

Paper 4Theory (Extended)1 marks

Description

Mole Calculations

In a chemical reaction, the mole is used to relate the amounts of reactants and products. For example, if 2 moles of hydrogen react with 1 mole of oxygen, they produce 2 moles of water.

  1. a

    State how many moles of water are produced from 2 moles of hydrogen and 1 mole of oxygen.

    Aim for approximately 1 distinct marking point.

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