Chemistry calculations 1.0 / 5 based on 1 rating ? ChemistryCalculations, moles and yieldGCSEWJEC Created by: KellandWilliamsCreated on: 18-04-17 08:35 How do you work out the %element ? %element= Ar x number of atoms in the compound ÷ Mr of the compound x100 1 of 5 Calculating % yield %yield= Actual mass of product during experiment ÷ theoretical mass of product from calculation x100 2 of 5 Number of moles Mass(g) ÷ Ar/Mr 3 of 5 Coverting moles into mass of substance Number of moles x (Ar or Mr) of element/compound 4 of 5 Calculating Mr Mr= add up all the Ar of the elements present in the compound 5 of 5
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