Learning objective
Describe the reaction between sodium thiosulfate solution and hydrochloric acid as a practical method for investigating rate. (AT 1, AT 3, AT 5, AT 6)
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Topic
Rate of reaction
Subtopic
Factors which affect rates of chemical reactions
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Quick explanation
Describe the reaction between sodium thiosulfate solution and hydrochloric acid as a practical method for investigating rate. (AT 1, AT 3, AT 5, AT 6)
- This point belongs to Rate of reaction, especially Factors which affect rates of chemical reactions.
- You need to be able to describe the reaction between sodium thiosulfate solution and hydrochloric acid as a practical method for investigating rate. (AT 1, AT 3, AT 5, AT 6).
- The key ideas to know are sodium thiosulfate, AT 5, and AT 6.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Factors which affect rates of chemical reactions to exam-style questions, flashcards, and revision notes for Rate of reaction.
Quick student answer
What are the reaction between sodium thiosulfate solution and hydrochloric acid?
Direct answer
In Chemistry, this page helps you answer questions about the reaction between sodium thiosulfate solution and hydrochloric acid within Rate of reaction. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are sodium thiosulfate and hydrochloric acid.
Key terms
- sodium thiosulfate: A chemical compound used in the reaction with hydrochloric acid to investigate reaction rates. In AQA GCSE Chemistry 8462, use this term specifically when explaining rate of reaction, collision theory, reversible reactions, equilibrium, catalysts, graph gradients, or Le Chatelier's principle.
- hydrochloric acid: A strong acid that reacts with sodium thiosulfate in experiments to measure the rate of reaction. In AQA GCSE Chemistry 8462, use this term specifically when explaining rate of reaction, collision theory, reversible reactions, equilibrium, catalysts, graph gradients, or Le Chatelier's principle.
Common trap
Misunderstanding the Reaction Process: To fix this, students should observe the reaction carefully and note the time taken for the solution to become opaque, understanding that this gradual change is a key indicator of the reaction rate.
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Open revision notesRelated learning objectives
- Define rate of reaction as the speed at which reactants are used up or products are formed.
Calculating rates of reactions
- Calculate mean rate of reaction using quantity of reactant used divided by time taken. (MS 1a)
Calculating rates of reactions
- Calculate mean rate of reaction using quantity of product formed divided by time taken. (MS 1a)
Calculating rates of reactions
- Use units such as g/s, cm3/s or mol/s for rate of reaction calculations.
Calculating rates of reactions
- Interpret rate data from tables and graphs.
Calculating rates of reactions