Formulae 0.0 / 5 ? ChemistryCalculationsA2/A-levelEdexcel Created by: lucywolfpCreated on: 28-03-17 13:00 How do you calculate pH? pH= -log[H+] 1 of 8 How do you calculate pKa? pKa= -logKa 2 of 8 How do you calculate Gibbs free energy? ∆G= -RTlnK 3 of 8 How do you calculate lnK from Gibbs free energy? lnK= -∆G/RT 4 of 8 How does ΔS relate to K? ΔStotal=RlnK 5 of 8 How do you calculate moles from temperature and pressure? pV=nRT, p(pa), V(m^3), T(K) 6 of 8 What is the molar volume of a gas? The volume occupied by one mole of a gas under standard conditions, 24dm^3 7 of 8 How do you calculate Rf values for chromatography? Rf=distance travelled by component/distance traveled by solvent 8 of 8
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