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(c) calculations of empirical and molecular formulae, from composition by mass or percentage compositions by mass and relative molecular mass
M0.2, M2.2, M2.3, M2.4 To include calculating empirical formulae from elemental analysis data.
(d) the terms anhydrous, hydrated and water of crystallisation and calculation of the formula of a hydrated salt from given percentage composition, mass composition or based on experimental results
M0.2, M2.2, M2.3, M2.4 PAG1
Calculation of reacting masses, gas volumes and mole concentrations (e) calculations, using amount of substance in mol, involving: (i) mass (ii) gas volume (iii) solution volume and concentration M0.0, M0.1, M0.4, M1.1, M2.2, M2.3, M2.4 Learners will be expected to express concentration in mol dm–3 and g dm–3. (f) the ideal gas equation: pV = nRT M0.0, M0.1, M0.4, M1.1, M2.2, M2.3, M2.4 The value for R is provided on the Data Sheet. Learners will be expecte
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