The moles of N₂O₄ would be produced by given moles of NO₂ is 1 mole.
Stoichiometry of any reaction gives idea about the amount of species present before and after the completion of reaction.
Given chemical reaction is:
2NO₂ ⇄ N₂O₄
From the stoichiometry of the reaction it is clear that, 2 moles of nitrogen dioxide will produces 1 mole of N₂O₄.
Hence the produced moles of N₂O₄ is 1 mole.
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