Chemistry A-Level
Significant figures in particle calculations
What Significant figures in particle calculations means in Chemistry A-Level, as defined for OCR.
Definition of Significant figures in particle calculations
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Reference: OCR
The value is kept to three significant figures as given, so 6.02 × 10²³ is used rather than rounding the constant to 6 × 10²³.
Topics that use Significant figures in particle calculations
- Amount of substance (OCR A-Level)
Related terms
- amount of substance
- atom economy
- Atom economy and by-products
- Concentration in mol dm⁻³
- Converting between cm³ and dm³
- Converting between moles and number of particles
- Empirical formula
- Empirical formula mass and molecular formula multiplier
Using Significant figures in particle calculations in the exam
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