Ar = (Atomic mass x abundance %) + (Atomic mass x abundance %)
% Purity = (mass of pure substance/total mass) x 100
Mass = moles x mass of 1 mole
Moles = mass/ Mr
1 mole = 24 dm3
Concentration = Amount of solute/Volume of solution
% Yield = (Actual mass of product obtained/Theoretical mass of product) x 100
Enthalpy change (ΔH) = Energy in – Energy out
Rf = Distance from origin to dot/ Distance from origin to solvent front
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