Relative Mass 0.0 / 5 ? ChemistryMoles and EquationsASWJEC Created by: _SarahCreated on: 13-10-13 19:56 Relative Atomic Mass (Ar) the average mass of an atom of an element on a scale where one atom of 12C has a mass of exactly 12 1 of 5 Relative Isotopic Mass (RIM) the mass of an atom of an isotope of an element on a scale where one atom of 12C has a mass of exactly 12 2 of 5 Relative Molecular Mass (Mr) the average mass of a molecule of a compund on a scale where one atom of 12C has a mass of exactly 12 3 of 5 Molar Mass the mass of one mole of something, molar mass is the same as the relative molecular mass Mr 4 of 5 One Mole (Avogadro's Constant) the same number of particles as there are atoms of carbon in exactly 12g of 12C 5 of 5
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