YOUR IB CHEMISTRY COMPANION

Where chemistry
makes sense.

Understand the why, connect the ideas, and walk into your next exam with confidence.

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Concepts first. Memorisation second.

See the connectionsNot just the equations

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✓ Exam-ready practice

YOUR WORKSPACE

Pick up where you left off

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Build your foundations

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Start with the particle model, then connect structure to properties and reactions.

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QUICK CHECK2 MIN

Ready for a warm-up?

Test one essential idea before moving on.

Which particle determines an element’s atomic number?

LEARN BY UNDERSTANDING

Study notes

All 22 numbered syllabus topics in order, plus chemistry skills and practical work. Every topic includes explanations, key ideas and a worked example.

24topic collections

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Choose a topic to begin

Your notes and examples will appear here.

IB CHEMISTRY · FIRST ASSESSMENT 2025

Two years.
One connected course.

The 22 official syllabus topics arranged into a practical teaching sequence, using the IB Chemistry roadmap and a published scheme of work as a guide.

22SYLLABUS TOPICS

10LEARNING UNITS

2DP YEARS

THE BIG IDEAStructure determines reactivity — and reactivity transforms structure.↘

FAST REVISION

Formula sheet

Core equations with definitions, units and reminders about when to use them.

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EXPLORE THE ELEMENTS

Periodic table

Select any element to see its atomic number, relative atomic mass and family.

118known elements

H

SELECTED ELEMENT

Hydrogen 1

Atomic number 1 · Relative atomic mass 1.008 · Non-metal

Select an element to explore it

RETRIEVE · APPLY · IMPROVE

Exam practice

Practice essential concepts with instant feedback and short explanations.

0/0correct answers

CORE CONCEPTSQuestion 1 of 10

FROM DATA TO ANSWERS

Chemistry tools

Use the right relationship, enter your values and keep track of units.

M

Molar mass

Calculate the molar mass of a formula.

Chemical formula

Enter a formula to begin.

Supports common element symbols and parentheses. Use normal numbers for subscripts.

C

Concentration

Calculate amount concentration.

Amount, n (mol)Volume, V (dm³)

c = n ÷ V

Volume must be in dm³. 1 dm³ = 1000 cm³.

pH

pH calculator

For a strong monoprotic acid at 25 °C.

Hydrogen ion concentration, [H⁺] (mol dm⁻³)

pH = −log₁₀[H⁺]

Assumes [H⁺] is known and activity effects are negligible.

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Equation balancer

Balance simple chemical equations.

Unbalanced equation

Try a simple reaction with formulas and → or ->.

This tool handles many simple equations; always verify complex redox equations.

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AI study companion

A chemistry-focused helper that explains ideas step by step and supports your own learning.

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GchemIB TutorIB Chemistry · Clear explanations

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Hi! Let's make chemistry click.

Ask me to explain a concept, walk through a calculation, compare two ideas or create a mini practice question. I’ll aim for clear, step-by-step answers.

AI can make mistakes. Check important answers against your class notes and trusted sources.