EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 复习笔记:3.2.5 Practical: Effect of Catalysts on Rate of Reaction

 

3.2.5 Practical: Effect of Catalysts on Rate of Reaction

Practical: Effect of Catalysts on Rate of Reaction

Aim:

To investigate the effect of different solids on the catalytic decomposition of hydrogen peroxide

Diagram:

 

Investigating-effect-of-catalyst-on-rate-reaction

 

Diagram showing the apparatus needed to investigate the effect of a catalyst on the rate of reaction

 

 

Method:

  • Add hydrogen peroxide into a conical flask
  • Use a delivery tube to connect this flask to a measuring cylinder upside down in water trough
  • Add the chosen catalyst into the conical flask and close the bung
  • Measure the volume of gas produced in a fixed time using the measuring cylinder
  • Repeat experiment with different catalysts and compare results
  • Catalysts to try could include: manganese(IV) oxide, lead(II) oxide, iron(III) oxide and copper(II) oxide

Result:

  • The data for different catalysts can be plotted on the same graph and the relative rates compared

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