Tranistion Metals

Question 0

How do heterogeneous catalysts work give a reaction which is catalysed in this way

Answer 0

Catalyst increases collision frequency
Reactants must be correctly orientated 
Reaction on the surface 
Products desorbed 
Use V2O5

Question 1

Outline a plan of experiments using colorimeter to determine the conc. of iron (III) ions in a solution of unknown concentration

Answer 1

Use appropriate ligands to intensify colour eg. Thiocyanate
Make up solutions of know concentration
Measure absorption
Plot graph of results
Measure absorption of unknown and compare