Important Calculations 3.0 / 5 based on 2 ratings ? ChemistryCalculationsASAQA Created by: Lucy WebsterCreated on: 03-01-13 15:22 Relative Atomic Mass Ar = sum of relative abundance x m/z value / sum of relative abundances 1 of 10 Numer of Moles Moles = mass/Mr 2 of 10 Mass Mass = moles x Mr 3 of 10 Mr Mr = mass/moles 4 of 10 Number of Moles Moles = concentration (mol dm-3) x volume (dm3) 5 of 10 Concentration Concentration = moles/volume 6 of 10 Volume Volume = moles/concentration 7 of 10 Ideal Gas Equation pV = nRT 8 of 10 % Yield % Yield = actual yield/theoretical yield x 100 9 of 10 % Atom Economy % atom economy = mass of desired product/total mass of reactants x 100 10 of 10
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