Autocatalysis Experiments (AQA A-Level Chemistry): Flashcards
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Autocatalysis definition
Autocatalysis definition
Product of reaction acts as catalyst for the reaction itself
Autocatalyst in / reaction
Autocatalyst in / reaction
ions
Conc. of solution used (mol dm⁻³)
Conc. of solution used (mol dm⁻³)
0.02 mol dm⁻³
Conc. of ethanedioic acid used (mol dm⁻³)
Conc. of ethanedioic acid used (mol dm⁻³)
0.2 mol dm⁻³
Vol. of ethanedioic acid in mixture (cm³)
Vol. of ethanedioic acid in mixture (cm³)
50.0 cm³
Time interval between samples (s)
Time interval between samples (s)
30 seconds
Colour of starch-iodine complex
Colour of starch-iodine complex
Blue-black
Endpoint colour of thiosulfate titration
Endpoint colour of thiosulfate titration
Colourless
Thiosulfate vol. proportional to what?
Thiosulfate vol. proportional to what?
Concentration of ions
Rate profile of autocatalytic reaction
Rate profile of autocatalytic reaction
Starts slow, speeds up, then slows again