Chemistry Equations 0.0 / 5 ? AllEquationsGCSEEdexcel Created by: alijenCreated on: 01-05-18 18:25 Avogadro's number There are 6.02 x 10 particles of a substance in 1 mole. 1 of 7 The mole moles = mass/M (relative atomic mass) 2 of 7 Concentration in g/dm concentration = mass (g)/volume (dm ) 3 of 7 Calculating energy changes Energy change in a reaction = Total energy needed to break the bonds in reactants - Total energy released when bonds in the products are formed 4 of 7 Rate of reaction mean rate of reaction = quantity of reactant used / time taken 5 of 7 Rate of reaction mean rate of reaction = quantity of product formed / time taken 6 of 7 Chromatography R = distance moved by substance / distance moved by solvent 7 of 7
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