Last updated on Sep 21, 2026

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

📚Flashcards

Revision Notes Model Answers Quizzes Flashcards Exam Questions

The Mole

Sign up to keep revising.Create a free account to study more flashcards and track your progress.

Practise the cards

7 cards from this deck

Show

What is a mole?

Unit for counting particles like atoms or molecules

Number of particles in one mole

$6.02 \times 10^{23}$ particles

Name for $6.02 \times 10^{23}$

Avogadro's number

Why chemists use moles

Like counting in dozens; provides convenient unit for counting tiny particles

Mass of one mole equals

$A_r$ or $M_r$ in grams

Mass of one mole of carbon $C$

12 grams ( $A_r$ = 12)

Mass of one mole of water $H_2O$

18 grams ( $M_r$ = 18)

Explore AQA GCSE Chemistry Combined Science Revision Notes by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

Explore AQA GCSE Chemistry Combined Science Model Answers by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

Explore AQA GCSE Chemistry Combined Science Quizzes by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

Explore AQA GCSE Chemistry Combined Science Exam Questions by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

Join 100,000+ GCSE students studying Flashcards with us.

Select your subjects, and get access to A+ resources today.