Sorted FAQs on Hydrogen Peroxide investigations
1. What is a clock reaction?
2. How to investigate decomposition by titration?
3. Method for H2O2 - iodide using titration?
4. Stopwatch error in 2 hrs?
5. Hydrogen peroxide dilution calculation
B. Rate, orders and activation energy
(a) H2O2 decomposition
1. Why H2O2 kept in fridge?
2. Why H2O2 kept in brown bottle?
3. Value for half-life?
4. How to show 1st order?
5. Rate constant for catalysed decomposition too small?
6. Effect of metal oxide catalysts?
7. Catalytic decomposition - problems with timescale
8. Activation energy for decomposition with MnO2 catalyst
(b) H2O2 - iodide reactions
1. How to interpret timing data?
2. Finding k from plots?
3. Finding a value for k?
4. What are the orders?
5. Mechanism?
6. Order w.r.t. thiosulphate?
7. How to work out k from rate equation?
8. Where to find values for order w.r.t. H+?
9. How to work out activation energy?
10. Value for activation energy?
11. Effect of Fe(III) on activation energy?
12. Mechanism with catalyst?
13.Half-equations
updated: 08 August 2008
