IGCSE Chemistry Formula Sheet
This IGCSE Chemistry formula sheet covers the calculations in Cambridge 0620 (moles, gas volumes, concentration and yield) and a chemistry chemical formula list for the compounds named in the syllabus, which says you must be able to state their formulae. It is the basic formula of chemistry you need in one place.
- 20 formulas
- 3 sections
- Checked 22 October 2026
Calculations
The mole relationships and calculations the syllabus asks you to use.
- Amount of substance (moles)
- Avogadro constantExtended
- Gas volume at r.t.p. (24 dm³ per mole)
- Concentration
- Percentage yield
- Percentage purity
- Percentage by mass of an element
- Rf value (chromatography)
General formulae of homologous series
Listed in the syllabus for organic chemistry.
- Alkanes
- Alkenes
- Alcohols
- Carboxylic acids
Chemical formulas of common compounds
Compounds named in the syllabus, whose formulae you are expected to state.
- Water, carbon dioxide, carbon monoxide
- Ammonia, methane, sulfur dioxide
- Hydrochloric, sulfuric and nitric acid
- Sodium hydroxide, sodium chloride
- Calcium carbonate, calcium oxide
- Copper(II) sulfate, iron(III) oxide, aluminium oxide
- Ethene, ethanol, ethanoic acid
- Glucose
Based on the Cambridge IGCSE Chemistry 0620 syllabus for 2026, 2027 and 2028 (official source), checked 22 October 2026. Always check the formula list printed in your own exam paper.
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