Percentage Yield and Atom Economy 0.0 / 5 ? ChemistryCalculationsASOCR Created by: RIPClubPenguinCreated on: 14-04-17 18:03 What is percentage yield a measure of? Success of a laboratory preparation, as in the efficiency of the preparation 1 of 14 What is equation to find percentage yield? (Actual yield/theoretical yield) x 100 2 of 14 What is theoretical yield? Amount of moles/grams you are expecting to get out of an experiment 3 of 14 What is actual yield? Amount of the moles/grams you actually get out of an experiment 4 of 14 What is typical percentage yield of an organic reaction? 40-80% 5 of 14 What is a benefit of having a high percentage yield? Not wasting Raw material 6 of 14 What reagent do we use to calculate theoretical yield? Limiting reagents 7 of 14 What is atom economy a measure of? Efficiency of a reaction in terms of the atoms involved 8 of 14 What two things does atom economy take into account? Desired product and by-products formed also 9 of 14 What is equation of atom economy? (Mr of desired product/ sum of Mr of all products) x 100 10 of 14 what is a benefit of a high atom economy? Less waste products 11 of 14 What reactions have 100% atom economy and why? Addition as there is only one product 12 of 14 What is a way to increase atom economy? Find uses for by-products 13 of 14 What do you need to consider when considering the efficiency of a reaction? Atom economy and percentage yield 14 of 14
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