rp3-rates-method-sheet.pdf, Study notes of Chemistry

Download rp3-rates-method-sheet.pdf and more Study notes Chemistry in PDF only on Docsity! RP3: Investigation of how the rate of a reaction changes with temperature – Method sheet Adapted from AQA AS and A-Level Chemistry Required Practical Handbook. 1 Apparatus and Techniques:  AT a. use appropriate apparatus to record a range of measurements  AT b. use water bath or electric heater or sand bath for heating  AT k. safely and carefully handle solids and liquids, including corrosive, irritant, flammable and toxic substances Equation: Na2S2O3 (aq) + 2HCl (aq)  2NaCl (aq) + SO2 (g) + S (s) Requirements:  0.05 mol dm-3 sodium thiosulfate solution  1.0 mol dm-3 hydrochloric acid  Sodium carbonate solution and phenolphthalein stop bath  Thermometer  Plastic container with lid  At least 6 test tubes to hold 12-14 cm3 of liquid  10 cm3 measuring cylinder x 2  Plastic pipettes  Stopwatch  Clamp and stand  Plain paper  Graph paper