Particle number and amount of substance
What Particle number and amount of substance means in Combined Science GCSE, as defined for AQA.
Definition of Particle number and amount of substance
Check what you remember
Read the wording for your board, then hide it and explain Particle number and amount of substance in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The number of particles is the number of moles multiplied by 6.02 × 10²³, and the number of moles is the number of particles divided by 6.02 × 10²³.
Topics that use Particle number and amount of substance
- Moles (HT only) (AQA GCSE)
Related terms
- Avogadro constant
- Molar mass and mass–mole calculations
- mole
- Mole ratios from balanced equations
- Relative formula mass
- The mole as a counting unit
- Amount in moles
- Amount of substance and the mole
Using Particle number and amount of substance in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Combined Science questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
A week of Premium from your first lesson · Then the free plan continues · No card, no charge