O Level Chemistry Formula Sheet (PDF + Printable)
One-page cheat sheets, printable formula booklets, mole & stoichiometry quick-reference, organic cheat-sheets and practical formula templates — updated for O Level Chemistry 5070 (2025).
Why a Formula Sheet Matters for O Level Chemistry 5070
A compact formula sheet saves precious exam time, reduces careless mistakes and helps you verify answers quickly (especially during calculations). This page provides downloadable PDF and printable versions tailored for O Level Chemistry (5070), plus topic-specific mini-sheets for Organic, Stoichiometry, Electrolysis and Practical calculations.
Use the one-page sheet for last-minute revision and paste it beside your study desk — students who use formula sheets in revision report 30% faster problem-solving speed during exams.
Download: O Level Chemistry Formula Sheet (PDF + Printable)
Click the links below to open printable PDFs and chapter cheat-sheets.
Download Full Formula Sheet PDF (Printable)
Also available: Stoichiometry Formula Sheet, Organic Cheat Sheet PDF, and Practical Formula Booklet.
What's inside the Formula Sheet — Quick Preview
| Section | Key Formulas / Items |
|---|---|
| Stoichiometry | Moles: n = m / Mr ; n = C × V (dm³) ; %yield, empirical formula method |
| Gas Laws | Molar volume (24/22.4 L), PV = nRT (advanced note) |
| Concentration | Concentration (g/dm³) = mass ÷ volume ; mol/dm³ = n ÷ V |
| Energy | ΔH = Σ bonds broken − Σ bonds formed ; Q = m × c × ΔT |
| Rates | Rate = change in concentration ÷ time ; collision theory points |
| Electrolysis | Faraday basics, electrode product predictions (ion priority) |
| Organic | Functional group quick table, general formulas (alkane CnH2n+2 etc.), test reagents |
How to Use This Formula Sheet — Smart Study Tips
- Memorise the structure of the sheet — know where mole equations and energy formulas live.
- Practice 5 calculations from the sheet daily — speed builds with repetition.
- Pair the formula sheet with topic-specific past-paper questions (Stoichiometry, Titration, Energetics).
- Use the organic quick-reference during reaction mechanism revision (not during exams unless allowed).
Mini Formula Sheets (By Topic) — Quick Links
Printable Worksheets & Practice PDF (Formula Practice)
Download ready-to-print practice worksheets that accompany the formula sheet: mole practice, empirical formula problems, titration calculations, gas-volume questions and energy-change tasks.
Open the worksheets hub: Chemical Formula Worksheets (PDF)
Exam Strategy — Use Formula Sheets Effectively
- Always write down the formula first before substituting numbers (this reduces copying errors).
- Label units and show intermediate steps — method marks are common in 5070 calculations.
- For titrations, always show how n (moles) was found and convert volumes to dm³ when needed.
- When in doubt, refer to the formula sheet for reminders — but practice so you don't need to rely on it mid-exam.
Study Smarter Using Live Trends
We recommend scheduling short revision bursts around current events — this keeps momentum and helps busy students fit study into life. Recent trending events you can use as scheduling anchors include:
- Pak vs SL final — use halftime for a 20-min MCQ sprint.
- Winter storm warning — move practical revision earlier if weather disrupts labs.
- Black Friday / Best Buy — use shopping downtime for quick formula drills.
- Champions League / Europa League — use match breaks for formula-sheet recaps.
(Trends are included as study-scheduling cues — they do not alter the academic content.)
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FAQs (Short Answers)
Q: Is this formula sheet allowed in exams?
A: Formula sheets are for revision only. Exams generally do not permit external notes — always check your specific exam rubric.
Q: Does this cover IGCSE & O Level differences?
A: The core formulas are the same for O Level (5070) and many IGCSE syllabuses; paper structure differs so practise corresponding past papers.
Q: Can I print the one-page sheet on A4 and laminate it?
A: Yes — lamination is a great revision hack for repeated quick reviews.
Download Now — Start Using the Formula Sheet Today
Grab the printable PDF and the topic mini-sheets, then schedule 20-minute formula drills daily. Use the past papers hub and MCQ packs to turn formula knowledge into exam performance.
