Chemistry Equations 0.0 / 5 ? ChemistryCalculationsA2/A-levelOCR Created by: An DiCreated on: 25-09-19 13:17 Equation linking - Mass, Moles, Relative Atomic Mass Moles = Mass/Atomic Mass n=m/Ar 1 of 11 Equation linking - Mass, Moles, Relative Molecular Mass Moles = Mass/Molecular n=m/Mr 2 of 11 Relative Atomic Mass Ar = (Isotope Mass x % Abundance)/Total Abundance 3 of 11 Relative Abundance from Mass Spectrum % = (Peak/Total Peaks) x 100 4 of 11 Relative Atomic Mass from Mass Spectrum Ar= (Isotope Mass x % Abundance)/Total Abundance 5 of 11 Gas Volumes (Volume in dm3) Moles = Volume/24.0 6 of 11 Gas Volumes (Volume in cm3) Moles = Volume/24000 7 of 11 Ideal Gas Equation Pressure (Pa) x Vol (m3) = Moles (n) x 8.314 (R) x Temp (K) 8 of 11 Concentration Moles (mol) = Concentration (mol dm-3) x Volume (dm3) 9 of 11 % yeild % yeild = (Actual Amount x Theoretical Amount) x 100 10 of 11 Atom Economy (Molecular Mass of Desired Products x Molecular Mass of all Products)/100 11 of 11
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