Exam (elaborations)
A Level OCR A -Chemistry Paper 3 MARKING SCHEME
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Amount of substance equations - CORRECT ANSWERS-mass = mr x moles mol = vol x conc vol(gas) = mol x 24 (dm) PV=nRT (pressure, Pa, volume, m3, moles, -, 8.314, temp, k) Empirical formula - CORRECT ANSWERS-The simplest whole number ratio of atoms of each element in a compound Molecular formula ...
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