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Calculate the percent atom economy when a product of formula weight $175 \mathrm{u}$ is obtained in a chemical reaction using $225 \mathrm{u}$ formula weight reactant.
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2449 Upvotes
Verified Answer
The correct answer is:
$77.7 \%$
$\%$ atom economy
$$
\begin{aligned}
& =\frac{\text { Formula weight of the desired product }}{\text { Sum of formula weight of all the reactants }} \times 100 \\
& \text { used in the reaction } \\
& =\frac{175 \mathrm{u}}{225 \mathrm{u}} \times 100 \\
& =77.7 \%
\end{aligned}
$$
$$
\begin{aligned}
& =\frac{\text { Formula weight of the desired product }}{\text { Sum of formula weight of all the reactants }} \times 100 \\
& \text { used in the reaction } \\
& =\frac{175 \mathrm{u}}{225 \mathrm{u}} \times 100 \\
& =77.7 \%
\end{aligned}
$$
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