Avogadro constant
What Avogadro constant means in Combined Science GCSE, as defined for AQA.
Definitions of Avogadro constant
Exam boards and our study guides word this term in slightly different ways. Learn the version your board uses.
Check what you remember
Read the wording for your board, then hide it and explain Avogadro constant in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The number of atoms, molecules or ions in a mole of a given substance, with a value of 6.02 x 10²³ per mole.
The number of entities per mole, approximately 6.02 × 10²³.
Topics that use Avogadro constant
- Moles (HT only) (AQA GCSE)
Related terms
- Molar mass and mass–mole calculations
- mole
- Mole ratios from balanced equations
- Particle number and amount of substance
- Relative formula mass
- The mole as a counting unit
- Amount in moles
- Amount of substance and the mole
Using Avogadro constant 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