Sorted FAQs on Peroxodisulphate Reactions
1. Concentrations and volumes to use?
2. Ideal concentrations for temperature experiments?
3. Using titration - how to quench?
4. How to investigate the effect of catalysts?
5. How to work out iodide concentrations?
6. How to use colorimetry to find orders?
7. Details of colorimetric method?
8. Working out concentrations, finding gradients?
9. Structure of peroxodisulphate ion?
10. Using colorimetry
B. Order and mechanism
1. What is a clock reaction?
2. Mechanism: what's the point of the thiosulphate if its order is zero?
3. Link between collision theory and order?
4. What are the steps in the mechanism?
5. Order with Fe(III) catalyst?
6. Rate vs concentration graph for thiosulphate - why negative correlation?
C. Activation energy
1. Finding activation energy using Arrhenius equation?
2. Energy diagram from activation energy?
3. Value for activation energy?
4. Activation energies with transition metal catalysts?
5. Value for activation energy?
6. Experimental activation energy values
D. Use of catalysts
1. How to investigate the effect of catalysts?
2. Investigating Fe(III) ions as catalyst?
3. Varying concs with Fe(III) catalyst?
4. Order with Fe(III) catalyst?
5. Values of activation energy for transition metal ion catalysts?
6. Mechanism with Cu2+ catalyst?
7. Use of Cu2+ linked to split d-levels?
8. Suitable catalysts?
9. Fe(II) vs Cu(II) as catalyst
updated: 11 April 2009
