GCSE SCIENCE COURSEWORK (CHEMISTRY)
PLANNING: Skill Area P
Write down the aim of your Investigation.
To investigate the effects of change in concentration on the rate of reaction between Sodium Thiosulphate and Hydrochloric Acid.
Briefly describe your Preliminary Experiment and include your results. Explain how these results have helped you plan your main experiment (p8b).
An increase in concentration will lead to an increase in the rate of reaction because there will be a greater number of particles per unit/cm3. The particles will be closer together and have greater chance of colliding…
