This is a practical tutorial video, showing you how to collect the data to calculate rate of reaction, from a reaction where the reaction becomes turbid This is required for AQA GCSE Combined Science (8464) Required practical activity 11: investigate how changes in concentration affect the rates of reactions by a method involving measuring the volume of a gas produced and a method involving a change in colour or turbidity. Other useful links: The specification for the exams: https://aqa.org.uk/8464 My full GCSE Chemistry playlist: https://bit.ly/DrdBGCSEChemistry Recall questions for GCSE Chemistry: https://bit.ly/RecallGCSEChemistry Whole paper summaries: https://bit.ly/AQAChemistryPaper1 and https://bit.ly/AQAChemistryPaper2 If you found this helpful and want to support the channel, you can "buy me a coffee" https://buymeacoffee.com/drdebruin