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PP093 - Iodine clock reaction: Harcourt-Essen method
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The kinetics of a reaction can be investigated by determining how the rate of the reaction varies with the concentration of the reactants. The Harcourt-Essen method is useful as the reaction kinetics .. more
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PP130 - Making azo dyes
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Azo dyes provide an opportunity for students to carry out a simple multi-step organic synthesis. The methods provided here could be the basis for a student investigation into the effects of different .. more
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TL014 - Small-scale Andrew’s apparatus for estimating rate of gas produced by a reaction
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This document gives details of how to use a small scale small-scale Andrews apparatus (see also GL148 below) to  allow measurement of the time taken to collect the first bubble of gas produced by a re.. more
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PP094 - Bromine clock reactions: disappearing pink
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The kinetics of a reaction can be investigated by determining how the rate of the reaction varies with the concentration of the reactants. The 'disappearing pink' method provides an alternative to iod.. more
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SRA004 - The aluminium / bromine reaction
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A set of risk assessed instructions for safely demonstrating this exothermic reaction.Note:- These activities are designed to be carried out individually as part of a lesson conducted in a secondary s.. more
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PP092 - Iodine clock reactions: iodide-persulfate method
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Iodine clock reactions produce iodine, which reacts with starch to give the distinct blue/black colouration. The iodide-persulfate method is one of the simplest clock reactions, involving simple kinet.. more
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PP091 - Iodine clock reaction: Landolt method
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The Landolt method (potassium iodate(V) and sodium metabisulfite) was the first iodine clock reaction described, and can be used for a simple two-reagent investigation.
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PS067j Making biodiesel
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An explanation of biodiesel followed by straightforward instructions for making it as a class activity at GCSE. 
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SRA014 - Making and burning nitrocellulose - ‘gun cotton’
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Gun cotton was an early form of explosive used in guns. These instructions, with control measures, provide a safe procedure to make and burn one type of gun cotton.Note:- These activities are designed.. more
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PP040 - Action of heat on sodium hydrogen carbonate
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Small-scale method for determining mass change when sodium hydrogen carbonate decomposes. The method uses a mini spirit burner and an alternative 'crucible' and generates reliable results for quantita.. more
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Showing results 1 to 10 of 32
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