iron 3 oxide reacts with carbon monoxide according to the following equation:

Question

fe2O3+3Co-->2Fe+3Co2

a) how many moles of ions are produced when one mole of iron 3 oxide reacts

b) calculate the volume of carbondioxide produced when one mole of iron 3 oxidereacts

Answer 1

Here is a similar question I posted which may get you started. If you still have problems, post what you have done and tell me exactly where you have trouble with your next step.
http://www.jiskha.com/science/chemistry/stoichiometry.html