In an experiment carried out at 200oC and 1 atm pressure, 20 cm³of ammonia gas reacted with an excess of heated copper(II) oxide.
3CuO(s) + 2NH₃(g) → 3Cu(s) + 3H₂O(g) + N₂(g)
If all measurements were made at 200oC and 1 atm pressure, what would be the total volume, in cm³, of gaseous products?
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