Amount of substances 0.0 / 5 ? ChemistryAmount of substancesASAQA Created by: lohmeymCreated on: 07-04-14 15:00 relative atomic mass, Ar average mass of one atom of an element / (1/12)th mass of an atom of carbon 12 1 of 8 relative molecular mass, Mr average mass of one molecule / (1/12)th mass of an atom of C12 2 of 8 relative formula mass use for ionic compounds because they do not exist as molecules 3 of 8 Avogadro constant 6.022 x 10*23; is the number of atoms in 12g of carbon-12 4 of 8 mole a quantity of particles (1mol is 6.022 x 10*23 particles) 5 of 8 ideal gas equation PV=nRT 6 of 8 empirical formula represents the simplest ratio of the atoms of each element present in a compound 7 of 8 molecular formula actual number of atoms of each element in one molecule of the compound 8 of 8
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