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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
words matched: reaction, time
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PP147 - Preparation of Aspirin
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The procedure uses many important skills suitable for post-16 students, including following instructions, safe use of chemicals and equipment, chromatography techniques, recrystallization and melting .. more
words matched: reaction, time
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PP014 - Rates of hydrolysis of halogenoalkanes (qualitative)
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Halogenoalkanes contain polar covalent carbon-halogen bonds and undergo nucleophilic substitution reactions. This small-scale activity can be used to investigate the hydrolysis reaction of various hal.. more
words matched: reaction, time
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PP095 - Blue bottle reaction – original and variants
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The blue bottle reaction is a simple demonstration of a redox reaction, with obvious colour changes. It can also be used as an introduction to reaction kinetics, including the role of temperature on r.. more
words matched: reaction, time
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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.
words matched: reaction, time
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PP141 - The thiosulfate-acid reaction: rate and temperature
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Various monitoring techniques can be used to investigate how different factors affect the rates of reactions. The thiosulfate-acid ‘disappearing cross’ activity is an example of a clock reaction with .. more
words matched: reaction, time
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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
words matched: reaction, time
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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
words matched: reaction, time
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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
words matched: reaction, time
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PP041 - The thiosulfate-acid reaction: rate and concentration
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Small scale 'disappearing cross' methods for investigating the effect of concentration on the rate of the sodium thiosulfate - acid reaction. Includes use of an alkaline 'stop-bath' to neutralise used.. more
words matched: reaction, time
Showing results 1 to 10 of 887
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