Topic 5 Chemistry 0.0 / 5 ? ChemistryCalculationsASEdexcel Created by: DavidW001Created on: 17-05-19 09:17 Definition of the mole The amount of substance that contains the same number of particles as the number of carbon atoms in 12g of Carbon 12 1 of 6 Avogadro's constant 6.02 x 10^23 2 of 6 Molar Mass The mass per mole of a substance (gmol^-1) 3 of 6 Calculate the amount of atoms (in mol) in 2 moles of ethane C2H6 16 Moles 4 of 6 Empirical Formula The simplest whole number ratio of the atoms each element it contains. 5 of 6 How to calculate molecular formula from Empirical formula and molar mass Divide molar mass by molar mass of empirical formula and multiply empirical formula by this factor. 6 of 6
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