Question

Calculate the % atom economy for the following reaction with respect to acetophenone. 
C₆H₆+CH₃COCl = C₆H₅COCH₃+HCl

Answer 1

Molecular weight of Products= 12x6+1x5+12+16+12+1x3= 120
Molecular Weight of Reactants= 12x6+1x6+12+1x3+12+16+35.5= 156.5
Required: %Atom economy= ?
Formula: %Atom economy = ${\displaystyle \frac{\text{molecular weight of the product}}{\text{total molecular weight of the reactants}}\times 100}$

%Atom economy= ${\displaystyle \frac{120}{156.5}\times 100}$

%Atom economy= 76.677