Concept explainers
A fundamental principle green chemistry is atom economy (AE). AE is a measure of how many atoms from the starting materials are incorporated into the desired product. For example, if a reaction incorporates all the reactant atoms into the product of interest, the reaction has a percent AE of 100%. Toobtain percent AE for a reaction, we calculate the mass of the desired product that can be formed from a stoichiometric mixture of reactants, andcompare this mass with the total mass of that reaction mixture. (In a stoichiometricmixture of reactants, none of the reactants are present excess; the mole amounts are in the same ratio as the stoichiometriccoefficients).
The prime (') on the symbol for the mass of desired product serves to remind us that mass is calculated for a stoichiometric mixture of reactants. Use the definition above to calculate the percent AE for the following reactions, both of which can be used to make
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General Chemistry: Principles and Modern Applications (11th Edition)
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