Chemistry Calculation Formulae 5.0 / 5 based on 1 rating ? ChemistryAll, CalculationsGCSEEdexcel Created by: ChloeLWCreated on: 29-03-18 22:16 Moles Number of Moles = Mass in g (of Element or Compound) Mass of Compound or Atomic Mass 1 of 9 Concentration Concentration = Mass of Solute Volume of Solution 2 of 9 Rf Value Rf Value = Distance travelled by solute Distance travelled by solvent 3 of 9 Titration Concentration Calculations Concentration = number of moles volume of solution 4 of 9 Percentage Yield Percentage Yield = actual yield x100 theortical yield Theortical yield sometimes needs to be calculated first: Mass = moles x relative atomic number 5 of 9 Atom Economy Atom Economy = total mass of desired products x100 total mass of all products 6 of 9 Molar Volume Molar Volume = gas volume number of moles 7 of 9 Molar Volumes are the same under the same conditio Volume = Moles x 24 8 of 9 Rate of Reaction Rate of Reaction = amount of reactant used Time Rate of Reaction = amount of product formed Time 9 of 9
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