A student investigates how temperature affects the rate of reaction between sodium thiosulfate solution and dilute nitric acid.
During the reaction, a solid precipitate of sulfur forms, making the mixture go cloudy.
Describe a method the student could use to measure the time taken for the mixture to reach a specific level of cloudiness.
Practise Edexcel GCSE Chemistry Rates of reaction with exam-style questions for Foundation and Higher tier. 166 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.