Oxygen gas, O2, can be convertes into ozone, O3, by passing it through an electric discharge.
3O2(g) -> 2O3(g)
In an experiment, a volume of 300cm3 of oxygen was used but only 10% of the oxygen was converted into ozone. All volumes were measured using the same temperature and pressure.
What is the total volume of gas present at the end of the experiment in cm3?
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