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GCSE Chemistry · key term
The amount of substance, measured in moles (mol).
Used by AQA, Edexcel and OCR
Specification 4.3.2.1 · Paper 1
The quantity of a substance measured in moles, rather than its mass or volume.
Revise: The Mole ConceptThe quantity measured in moles is called the amount of substance. It is distinct from mass: two samples can contain the same amount in moles but have different masses because their particles have different masses.
Specification 1.51, 5.8C · Paper 1, Paper 2
The amount of substance containing a specified number of particles; its unit is the mole (mol).
The amount of substance containing one mole of particles, measured in mol.
Specification CM2.1i, CM3.1iv, C3.1h, C3.1l, CM5.1i, CM5.1iii, CM5.1iv, C5.1a · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A measure of the quantity of a substance, expressed in moles (mol); one mole contains a fixed number of particles.
The amount of substance, measured in moles (mol). It is represented by .
A physical quantity that measures how many specified particles are present in a sample; its symbol is and its unit is the mole, .
The amount of a substance measured in moles; one mole contains a fixed number of specified particles.
A chemical quantity that measures how many specified particles a sample represents; its symbol is and its unit is mol.
The quantity used to measure an amount of substance; its unit is the mole, mol.
The quantity used to measure amount of substance; its unit is the mole, mol.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A count of particles in a substance, expressed in moles.
Revise: Avogadro constant and the moleAn amount of substance of one mole, written 1 mol, contains the same number of specified particles whatever the substance is.
The amount of a substance, measured in moles.
Write the unit mol for amount of substance. Do not give a mass unit for a number of moles.
Include the correct unit: mol for amount of substance and g for mass. Relative formula mass has no unit.
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