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A simple activity involving the analysis of vinegar by titration using phenolphthalein as the indicator.
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This important technique is one of the essential skills in chemistry and involves using a burette to accurately measure the volume of one solution that is required to react completely with a known vol.. more
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Making solutions is an essential skill in chemistry. When accuracy is required (eg, for titration work), a volumetric flask is used.
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This small-scale analysis activity uses simple equipment and provides a useful introduction to the principles of titration. Quantities of the reagents are measured by mass (rather than volume) and the.. more
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The use of a burette is essential for delivering accurate volumes of liquid and carrying out volumetric analysis. It is important that the correct handling of the apparatus and titration technique are.. more
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The use of a pipette is essential for delivering accurate volumes of liquid and carrying out volumetric analysis. It is important that the correct handling of the apparatus is carefully taught. The te.. more
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Brief risk assessment guidance and experimental notes for a range of practical activities involving nitric(V) acid (Hazcard 67).
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Although both aldehydes and ketones contain the carbonyl functional group (-C=O), only aldehydes give a positive test (formation of an orange to brick-red precipitate of copper(I) oxide) with Fehling’.. more
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Although both aldehydes and ketones contain the carbonyl functional group (-C=O), only aldehydes (or reducing sugars) give a positive ‘silver mirror’ test result with Tollen’s reagent. This small-scal.. more
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Risk assessment information for ammonium sulfide, potassium sulfide and sodium sulfide salts and solutions.
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