Percentage yield and Atom economy
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4 Terms
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Percentage yield
actual yield/theoretical yield x 100
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Atom economy
mass of desired product/mass of total reactants x 100
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Difference between atom economy and percentage yield?
Percentage yield is the amount of products remaining.
Atom economy is the proportion of reactants that have been turned into product.
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Why does atom economy need to be high?
Raw materials are expensive and scarce so must be carefully conserved
Chemical processes need to produce as little waste as possible to minimise costs, energy use and pollution
Note 
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