If iron (II) oxide gas decomposes into iron liquid and oxygen gas and 6 moles of iron (II) oxide gas are used, how of liters of oxygen gas are produced?
The reaction equation is:
This means that for
The volume of the oxygen is dependant on temperature and pressure.
E.g. : If you cooled it down to
The 22.4 L being the molar volume for ideal gases under those conditions. There are tables for other temperatures.