Plot these results on a graph. Variables: Explain what caused the observed effects: Describe your results: Experiment B - Measuring the effect of temperature on the rate of a reaction Equipment: Procedure: Place 10cm3 of room temperature 0.2mol/dm3 Hydrochloric acid hydrochloric acid into a conical flask (0.2mol/dm3) Record the temperature of the solutions Sodium thiosulfate Draw an X with a pencil on a piece of plain paper & (0.2mol/dm3) place underneath the conical flask Stopwatch Add 10cm3 of sodium thiosulfate Conical Flask Start the stopwatch Water baths at 30, 40 & Record how long it takes for the X to be obscured 50°C Repeat the experiment with reactants at different Ice bath temperatures Measuring cylinder (10cm3) Cotton wool Thermometer
Plot these results on a graph. Variables: Explain what caused the observed effects: Describe your results: Experiment B - Measuring the effect of temperature on the rate of a reaction Equipment: Hydrochloric acid (0.2mol/dm3) Sodium thiosulfate (0.2mol/dm3) Stopwatch Conical Flask Water baths at 30, 40 & 50°C Ice bath Measuring cylinder (10cm3) Cotton wool Thermometer Procedure: Place 10cm3 of room temperature 0.2mol/dm3 hydrochloric acid into a conical flask Record the temperature of the solutions Draw an X with a pencil on a piece of plain paper & place underneath the conical flask Add 10cm3 of sodium thiosulfate Start the stopwatch Record how long it takes for the X to be obscured Repeat the experiment with reactants at different temperatures
5259-Rates%20of%20Reaction%20-%20Triple%20Science%20Resource.docx