Question

What volume (in ml) of carbon dioxide will form if 19.3 ml of O2 are reacted acccording to the following balanced equation:

2CO(g) + O2(g) --> 2CO2(g)

Assume an excess of CO and that all are at the same temperature and pressure.

Answer 1

Just follow these steps.
http://www.jiskha.com/science/chemistry/stoichiometry.html