Measuing the rate of chemical reactions and investigating the factors affecting rate.
The experiments in this section provide a range of opportunities to measure the rate of chemical reactions and to investigate the factors affecting rate. Initial rate methods, orders of reaction, rate mechanisms and the effect of temperature are covered as well as experiments involving catalysts (including enzymes).
While we are still at an early stage with this website it's probably more useful to look at the page with our complete list of experiments in alphabetical order. See the list on About this website.
We are starting with GCSE-level experiments.
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Experiments
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The photochemical reactions of chlorine with hydrogen and methane
The photochemical reaction of chlorine with hydrogen or methane is demonstrated under safe conditions.
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A colourful oscillating reaction
A mixture of bromate ions, bromide ions, malonic acid and ferroin indicator in solution oscillates between red and blue as a result of a series of reversible redox reactions.
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Iodine clock reaction
Demonstration of the slow reaction between iodide ions and hydrogen peroxide – the time for a blue colour to appear can be varied by altering the conditions.
