Chemistry revision - Quantitive chemistry calculations 0.0 / 5 ? ChemistryCalculations, moles and yieldGCSEEdexcel Created by: Mia PlattsCreated on: 11-11-20 16:21 MR equation relative mass of compounds formula mass 1 of 6 Ar Equation Ar= (mass 1 x abundance) + (mass 2 x abundance) divided by 100 2 of 6 Moles Equation moles = mass mr 3 of 6 Avogadro's constant 6.02 x 10 (to the power of the mass number of the element ) 4 of 6 Yield definition percentage yield = actual yield x 100 Theoretical yield 5 of 6 Example reacting amount equation Fe + s > FeS 6 of 6
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