Yield & Atom Economy (AQA GCSE Chemistry): Flashcards
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Atom economy definition
Atom economy definition
Measures how much reactants end up as useful products
Higher atom economy indicates
Higher atom economy indicates
Fewer waste products and more efficient reaction
Why atom economy is important
Why atom economy is important
Makes process more sustainable and cost-effective
Atom economy formula
Atom economy formula
( rac{M_r ext{ desired}}{M_r ext{ all products}}) imes 100
Fermentation of glucose: of ethanol
Fermentation of glucose: of ethanol
92
Fermentation of glucose: total of all products
Fermentation of glucose: total of all products
180
Fermentation of glucose: atom economy %
Fermentation of glucose: atom economy %
51%
What does atom economy % represent?
What does atom economy % represent?
The % of atoms from reactants that end up in the desired product
Hydration of ethene: atom economy %
Hydration of ethene: atom economy %
100%
100% atom economy means
100% atom economy means
No atoms are wasted
Significance of 100% atom economy
Significance of 100% atom economy
Very efficient - no atoms are wasted