C5.1.2 - Percentage Yield and Atom Economy Flashcards

1
Q

What is the actual yield?

A

The mass of the product that you actually make in a reaction

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2
Q

What is the percentage yield?

A

The amount of mass you actually make compared to the maximum mass you could make

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3
Q

What is the equation for percentage yield?

A

(Actual yield / theoretical yield) * 100

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4
Q

Why might the percentage yield be less than 100%?

A

The reaction may not go to completion
The reactants may react in a different way than expected
You may lose some product when you remove it from the reaction mixture and purify it

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5
Q

What is the atom economy of a reaction?

A

The amount of atoms in the reactants which form the desired products compared to how many atoms there are in the reactant

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6
Q

What is the equation for atom economy?

A

(Formula mass of desired product / formula mass of all products) * 100

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