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Latest updates

Titrations with a pH meter4 May 2022

Both Standard and Higher Level students need to understand about strong and weak acids and bases, (sub-topic 8.4) and the pH scale (sub-topic 8.3). They also need to be able to calculate the concentration... more

Voltaic cells2 May 2022

There is actually very little on the core part of the syllabus about voltaic cells under Topic 9.2 but it does contain the mandatory laboratory component in the Applications and skills section, "Performance... more

Determination of vitamin C content Free2 May 2022

Vitamin C is one of the vitamins listed in B.5 Vitamins. You will need to discuss its structure and explain why it is water-soluble as well as discuss the causes and effects of a lack of vitamin C in... more

Preparation of 1,3-dinitrobenzene 1 May 2022

This practical is really only for Higher Level students as it is an example of an electrophilic substitution reaction and covers the syllabus content for electrophilic substitution listed in 20.1 Electrophilic... more

Percentage of copper in brass30 April 2022

Brass objects have been found dating back as far as 5000 BCE. Brass has many different uses, for example, musical instruments, utility objects such as door handles, coinage and as a decorative substitute... more

4.1 Ionic bonding & structure 28 April 2022

Written specifically for students to provide help and support for the IB Diploma chemistry programme this page provides full coverage of the syllabus content of Topic 4.1 Ionic bonding & structure. It... more

Le Chatelier's principle 26 April 2022

Using a colour change is one of the best ways to demonstrate chemical equilibrium and Le Chatelier's principle. In fact students will already have met a simple example when they used an acid-base indicator... more

Iodination of propanone26 April 2022

This practical contains a lot of good Chemistry. Students will determine a rate equation for a known chemical reaction and then use it to suggest a mechanism for the reaction. Rate equations and their... more

Determining Ea for a reaction24 April 2022

This Higher Level practical builds on one of the classic experiments normally used at a pre-IB Diploma level (e.g. GCSE) to show the factors affecting the rate of a chemical reaction. This experiment... more

3-D molecular modelling 23 April 2022

This is one of the mandatory laboratory components listed under the Applications and skills section of Topic 10.1 Fundamentals of organic chemistry. You can, if you wish, set time aside to do this as... more