What is percentage atom economy during conversion of reactant to product if formula weight of reactants is…
What is percentage atom economy during conversion of reactant to product if formula weight of reactants is $246 \mathrm{u}$ and of product is $123 \mathrm{u}$ ?
$40.00 \%$
$50.00 \%$
$47.00 \%$
$21.5 \%$
Solution
Atom economy is the conversion efficiency of a chemical process in terms of all atoms involved and the desired products produced.
$\begin{aligned}
& \% \text { Atom economy }=\frac{\text { Formula weight of desired product }}{\text { Sum of formula weight of allreactant }} \times 100 \\
& =\frac{123}{246} \times 100 \\
& =50 \%
\end{aligned}$