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

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)

 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