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GCSE AQA Chemistry Important > C2 Calculations and analysis > Flashcards

C2 Calculations and analysis Flashcards

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1
Q

What is the formula for percentage yield?

A

(Actual Yield ÷ Theoretical yield) x 100

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2
Q

Give 3 reasons why the yield is not 100%.

A

Reversible reaction

Product can be lost when separated

Other reactions occur

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3
Q

What is the percentage yield if a reaction only produces 20g when in theory it produces 40g.

A

% yield = (20 ÷ 40) x 100 = 50%

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4
Q

What method can be used to analysis food additives?

A

Paper Chromatography

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GCSE AQA Chemistry Important (18 decks)

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