
Empirical Formula Explained Simply
Learn what an empirical formula is and how to calculate it step-by-step, with examples and tips for IB Chemistry success.

Learn what an empirical formula is and how to calculate it step-by-step, with examples and tips for IB Chemistry success.

IB Chemistry guide to heterogeneous vs homogeneous catalysis: definitions, mechanisms, key examples, exam phrasing, and common traps to avoid.

IB Chemistry guide: learn what a biodegradable material is, how microbes break it down, key examples, and exam-ready mistakes to avoid.

IB Chemistry stereoisomers explained simply: learn cis-trans vs enantiomers, how to spot chirality fast, and how to score exam marks with practice.

IB Chemistry molar mass explained with simple steps, common mistakes, and exam-style tips. Learn M, moles, and formulas with RevisionDojo practice.

IB Chemistry critical point explained simply: what it is, why liquid and gas disappear, supercritical fluids, exam traps, and quick revision tips.

IB Chemistry guide to the molecular ion peak in mass spectrometry: how M+ forms, how to spot it fast, and what weak peaks really mean.

IB Chemistry resonance explained simply: learn resonance structures, delocalised electrons, bond order, and exam tips with examples like ozone and nitrate.

IB Chemistry guide to reaction spontaneity: learn ΔG, ΔH, ΔS, and temperature, plus exam tips and RevisionDojo links for practice.

IB Chemistry isomerism explained clearly: structural vs stereoisomers, cis-trans and optical isomers, exam traps, and quick revision tips.

IB Chemistry guide to hydrogen bonding: definition, requirements (N, O, F), strength, and exam-ready effects on boiling point and solubility.

IB Chemistry guide to electrolytes: how ions conduct, strong vs weak electrolytes, and why they matter in electrolysis, redox, and acids/bases.

IB Chemistry coordination number explained with examples, common geometries, and exam pitfalls. Learn how ligands set shape, color, and stability fast.

IB Chemistry electrophilic addition made simple: learn the alkene mechanism, Markovnikov’s rule, bromine test, and exam tips with RevisionDojo.

IB Chemistry guide to why transition metals form colored ions: d-orbital splitting, ligands, oxidation state, and quick exam tips for marks.

IB Chemistry mass defect explained simply: learn why nuclei weigh less, how E=mc^2 links to binding energy, and how to answer exam questions fast.

IB Chemistry guide to calculate molarity: learn c = n/V, dm³ conversions, IB-style examples, dilution tips, and common exam mistakes to avoid.

IB Chemistry phase diagrams explained simply: learn curves, triple point, critical point, and exam tips to read P to T graphs fast and accurately.

IB Chemistry vaporization made simple: evaporation vs boiling, ΔHvap, intermolecular forces, heating curves, and exam tips with RevisionDojo.

IB Chemistry guide to molar absorptivity (ε): Beer Lambert law, units, λmax, calculations, common mistakes, and exam tips for spectrophotometry.

IB Chemistry guide to why graphite conducts electricity: layers, sp2 bonding, delocalised electrons, and exam-ready comparisons with diamond.

IB Chemistry reforming explained simply: learn isomerisation, catalytic reforming, dehydrogenation, and how fuels gain higher octane for exams.

IB Chemistry fuel cells explained simply: anode vs cathode, half-equations, pros/cons, and exam tips with RevisionDojo practice links.

IB Chemistry standard state explained: 100 kPa, usually 298 K, pure substances and 1.0 mol dm−3 solutions. Learn why it matters in exams.