Autocatalysis Experiments (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is autocatalysis?
What is autocatalysis?
Product acts as catalyst for reaction
Which ion acts as the autocatalyst in this experiment?
Which ion acts as the autocatalyst in this experiment?
What is the role of potassium iodide in this experiment?
What is the role of potassium iodide in this experiment?
Stops the reaction
What colour change indicates the titration endpoint?
What colour change indicates the titration endpoint?
Blue-black to colourless
How often are samples taken during the experiment?
How often are samples taken during the experiment?
Every 30 seconds
What is the volume of used proportional to?
What is the volume of used proportional to?
Concentration of remaining
How does the reaction rate change in autocatalysis?
How does the reaction rate change in autocatalysis?
Slow, speeds up, then slows again
What volume of ethanedioic acid is used initially?
What volume of ethanedioic acid is used initially?
50.0 cm³
What is the concentration of the sodium thiosulfate solution used?
What is the concentration of the sodium thiosulfate solution used?
0.01 mol dm⁻³
What volume of KI solution is added to each conical flask?
What volume of KI solution is added to each conical flask?
10.0 cm³