Calculating Mass of Substances (AQA GCSE Chemistry Combined Science): Quizzes

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The Mole
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What does a mole measure in chemistry?

Particles like atoms or molecules

What is Avogadro's number?

6.02×10236.02 \times 10^{23}

Who was Amedeo Avogadro?

Scientist who helped develop mole concept

Why do chemists use moles?

Atoms are too tiny to count individually

What is the mass of one mole equal to in grams?

Its relative atomic or formula mass

What is the mass of one mole of carbon?

12 grams

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

18 grams

How is the Mr of water (H2O)(H_2O) calculated?

2×1+162 \times 1 + 16

How many particles are in one mole of any substance?

6.02×10236.02 \times 10^{23} particles

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