Chemical Analysis 0.0 / 5 ? ChemistryAnalysing substancesGCSEAQA Created by: Annika BrowaCreated on: 09-04-18 20:20 Metal Carbonate + Acid =Metal Salt + CO2 +H20 1 of 20 Thermal Decomposition +Metal Oxide + CO2 2 of 20 What is Spectroscopy used for? To study matter, and the molecules, atoms and crystals that substances are made of. 3 of 20 What is the Lithium Flame Colour? Crimson 4 of 20 What is the Sodium Flame Colour? Yellow 5 of 20 Potassium? Lilac 6 of 20 Calcium? Brick red 7 of 20 Barium? Green 8 of 20 What is produced at the anode during electrolysis of Brine? Chlorine 9 of 20 What is produced at the cathode? Sodium Hydroxide 10 of 20 Where is Chlorine used? (Cl2) Swimming pools (kill microorganisms), drinking water (sterilisation), manufacture of other products. 11 of 20 Where is Sodium Hydroxie used? (NaOH) Breaking down fibres in wood to make pulp, breaking down body tissues (sometimes used in crimes), Manufacture of soap, food industry. 12 of 20 What is Chromatography used for? Chemical Analysis (finding substances present), Synthesis (purifying substances) 13 of 20 How does it work? Separates mixtures of dissolved substances- analyse which substances contain which elements 14 of 20 In Paper Chromatography, what would the filter paper represent? Stationary phase 15 of 20 What then, would the solvent represent? Mobile phase 16 of 20 What does Rf stand for? Retardation factor 17 of 20 How can one calculate an Rf value? Distance spot travels/ distance solvent travels 18 of 20 What if the Rf value is more than 1? It is incorrect 19 of 20 What is the stationary phase in T.L.C? Silica plates 20 of 20
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