Uncertainties in measurements: chemistry
Lesson 6 / 30
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I can explain why there is some uncertainty when measurements are made, how to minimise uncertainty, and calculate uncertainties.
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Whenever a measurement is made, there is always some uncertainty about the result obtained.
The uncertainty of an individual measurement is equal to half the resolution of the device used to take the measurement.
The higher the resolution, the lower the uncertainty of an individual measurement.
Half the range of repeated measurements equals the uncertainty of a mean value.
The uncertainty of a measurement provides a range within which the actual value can be found.
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