Calculating Atom Economy (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards

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Calculating Atom Economy
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Atom economy definition

Measures how much of reactants end up as useful products

Higher atom economy means

Fewer waste products and more efficient reaction

Why atom economy is important

Makes process more sustainable and cost-effective

Formula for percentage atom economy

( rac{M_r ext{ desired}}{M_r ext{ all products}}) imes 100

Fermentation of glucose produces

Ethanol

Atom economy of glucose fermentation to ethanol

51%

Atom economy of ethene hydration

100%

What 100% atom economy means

No atoms are wasted, very efficient reaction

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