.png)
Activities
Redox reactions of vanadium
Although the colours of individual transition metal ions in solution do not need to be learned, they do provide an excellent way to distinguish easily between the different oxidation states of ions of...
Activities
Analysis of Cu(II) ions in solution
In this experiment you will make up a standard solution of Cu2+(aq) ions, successively dilute it and use a spectrophotometer or a colorimeter to make a calibration curve. You then measure the absorbance...
Activities
Determination of vitamin C content
Vitamin C is necessary part of the diet as it is required to form the protein, collagen. A lack of vitamin C can cause lesions in the skin – a condition known as scurvy. It has the molecular formula...
Activities
Redox titration with KMnO4
This is a particularly good experiment to use the practical technique of redox titration and also provides much scope for good evaluation. You may already have met a simple form of redox titration (e.g....
Activities
A green acid-base practical problem
This practical presents you with a real challenge as it mimics the fact that the planet only has finite resources and once they are used up they are cannot be replaced. You will need to work in pairs...
Activities
Analysis of aspirin tablets
A nice application of a relevant acid-base titration which can also be used to explain why there is a considerable variation in the price different manufacturers of aspirin-containing tablets charge per...
Activities
Determining Ea for a reaction
This practical is a really neat extension of the “cross on a tile” experiment which enables Higher Level students to determine the activation energy for the reaction. This is one of the few practicals...
Activities
Iodination of propanone
This practical contains a lot of good chemistry. You 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 relevance...
Activities
Rate-dependent factors
The “cross on a tile” experiment to show the reaction between thiosulfate ions and an acid is one of the classic high school chemistry experiments but it is well worth doing to illustrate how the rate...
Activities
Boiling points of mixtures
This practical looks at how the intermolecular forces between two different liquids affect the boiling point of a mixture made of the two liquids as the ratio of the two liquids in the mixture changes....