OCR GCSE Gateway Science Suite - Combined Science A J250 · C2.1d
Empirical formulae
- Code
- C2.1d
- In
- C2.1 Purity and separating mixtures
- Topic
- C2 Elements, compounds and mixtures
- Course
- GCSE Gateway Science Suite - Combined Science A J250
- Board
- OCR
Grade boundaries·OCR command words
Codes and titles are read by a script from OCR's published specification and have not been checked by a person. What each point covers is in the specification itself: OCR’s specification.
Points in C2.1 Purity and separating mixtures
- CM2.1i Arithmetic and ratio in quantitative chemistry
- CM2.1ii Significant figures
- CM2.1iii Changing the subject of an equation
- CM2.1iv Ratio in empirical formulae and equations
- C2.1a Purity in science and everyday use
- C2.1b Melting points and purity
- C2.1c Relative formula mass
- C2.1d Empirical formulae
- C2.1e Formulations
- C2.1f Filtration, crystallisation and distillation
- C2.1g Paper and thin layer chromatography
- C2.1h Stationary and mobile phases
- C2.1i Chromatograms and Rf values
- C2.1j Choosing purification techniques
- C2.1k Chromatography to test purity