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Explore methods like precipitation, distillation, chromatography to separate substances and estimate purity. Learn factors influencing purity and evaluate methods. Includes practical examples on separating mixtures.
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Task 1 Separating Substances BTEC Level 3 Applied Science Unit 3 Assignment 1
How can we separate substances? Keywords Mixture, precipitation; crystallisation; filtration; drying; distillation; solvent extraction; chromatography; electrophoresis; centrifugation. Define the following words Atom, Element, Compound, Mixture P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples
Why do we need to separate substances? • You’ve been given a mixture of • Sand • Salt • Iron Fillings • Sugar • Water • How can you separate them? Keywords - Mixture, precipitation; crystallisation; filtration; drying; distillation; solvent extraction; chromatography; electrophoresis; centrifugation. P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples
P2 Demonstrate use of scientific techniques to separate substances. P3 Estimate the purity of samples using scientific techniques. M2 Describe the factors that influence purity D2 Evaluate the accuracy of the methods used to estimate the purity of the samples Steam Distillation Write an introduction about the uses of steam distillation Draw the apparatus Write a method – with an explanation of each step Write a risk assessment How is the mixture of essential oil and water separated?