AQA Chem 5- June 2013Watch
8 This question explores some reactions and some uses of cobalt compounds.
8 (a) Ethanal is oxidised to ethanoic acid by oxygen. The equation for this reaction is
2CH3CHO + O2 → 2CH3COOH
This redox reaction is slow at room temperature but speeds up in the presence of
Explain why a cobalt compound is able to act as a catalyst for this process.
Illustrate your explanation with two equations to suggest how, in the presence of water
and hydrogen ions, Co3+ and then Co2+ ions could be involved in catalysing this
Any help is appreciated!!!