Chemical Measurements (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards

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Chemical Measurements
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Uncertainty in measurements means

Measurement might not be exactly right

Factor affecting measurement accuracy

Precision of the instrument used

More precise instruments have

Smaller units of measurement

Method to reduce measurement uncertainty

Take multiple measurements and calculate average

What averaging measurements does

Balances out small errors in individual measurements

Effect of higher precision on accuracy

More precise instruments are more accurate

100 cm3100 \text{ cm}^3 measurement uncertainty range

Could be 99.5 cm399.5 \text{ cm}^3 to 100.5 cm3100.5 \text{ cm}^3

Explore OCR GCSE Chemistry A, Combined (Gateway Science Suite) Revision Notes by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

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Measurement, Mass & Equations

Calculating Mass of Substances

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Measurement, Mass & Equations

Calculating Mass of Substances

Explore OCR GCSE Chemistry A, Combined (Gateway Science Suite) Exam Questions by Topics

Measurement, Mass & Equations

Calculating Mass of Substances

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