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A high temperature reaction vessel is charged with 0.5080 mol of iron powder and 42.1 L of oxygen gas at standard temperature at pressure.On heating,the iron and oxygen react according to the balanced reaction below.
4Fe(s) + 3O2(g) → 2Fe2O3(s)
After the reaction vessel is cooled,and assuming the reaction goes to completion,what volume of oxygen remains?
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