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3.1.4 Chemical measurements

Why does every measurement carry some uncertainty?

A

Leave the anomalous result out of the calculation.

B
  • Equipment has limited resolution.
  • Readings may differ slightly between measurements.
C

18.5±0.1 cm318.5 \pm 0.1\ \text{cm}^318.5±0.1 cm3.

D
  • Exclude any anomalous result.
  • Add the valid results.
  • Divide by their number.

3.1.4 Chemical measurements Flashcards

  1. GCSE
  2. /Chemistry
  3. /3.1.4 Chemical measurements

Flashcards for AQA GCSE Chemistry 3.1.4 Chemical measurements, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 21 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.

Flashcards