The mole (Edexcel GCSE Chemistry): Quizzes

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3.2.1 The Mole
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How many particles are in one mole of any substance?

6.02×10236.02 \times 10^{23} particles

What is the number 6.02×10236.02 \times 10^{23} called?

Avogadro's number

Who is Avogadro's number named after?

Amedeo Avogadro

What is a mole used to count in chemistry?

Particles like atoms or molecules

Why do chemists use moles instead of counting particles individually?

Particles are too tiny to count

What units is the mass of one mole expressed in?

Grams

What is the mass of one mole of carbon (C)(C)?

12 grams

What is the mass of one mole of water (H2O)(H_2O)?

18 grams

What does the mass of one mole equal?

Ar or Mr in grams

What is the Mr of water calculated from?

2×1+162 \times 1 + 16

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The mole

Relative atomic mass

Relative formula Mass

Percentage composition example

Empirical formula example

Molecular formula example

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The mole

Relative atomic mass

Relative formula Mass

Percentage composition example

Empirical formula example

Molecular formula example

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The mole

Relative atomic mass

Relative formula Mass

Percentage composition example

Empirical formula example

Molecular formula example

Explore Edexcel GCSE Chemistry Exam Questions by Topics

The mole

Relative atomic mass

Relative formula Mass

Percentage composition example

Empirical formula example

Molecular formula example

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