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PP036 - Exploring equilibria: cobalt(II) complexes
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A relatively simple activity involving two vividly coloured cobalt(II) complexes in solution can be used to illustrate the effects of changing conditions (concentration, temperature) on a reaction at .. more
words matched: concentration
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RB043 - Hydrochloric acid
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Guidance on how to dilute hydrochloric acid.
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RB045 - Hydrogen peroxide
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Guidance on how to prepare hydrogen peroxide.
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RB031 - Copper(II) solutions
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Guidance on how to prepare copper (II) salts, including copper sulphate, copper nitrate and copper chloride.
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RB059 - Methanoic acid
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Guidance on how to prepare methanoic acid
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PP085 - Using colorimetry to quantify reducing sugar concentrations
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This provides an opportunity to develop and practice colorimetric techniques, and to plot a calibration curve. 
words matched: concentration
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PP074 - Investigating the effect of lipase concentration on rate of reaction
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An alternative practical using lipase.
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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: concentration
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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: concentration
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TL003 - Heat of reaction of zinc with copper(II) sulfate(VI)
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The activity described can be used as a class practical with KS4 students or as a demonstration with KS3. The energy changes involved can be comparedwith the concentration of the copper(II) sulfate(VI.. more
words matched: concentration
Showing results 1 to 10 of 313
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