Final answer:
Without the specific balanced chemical equation for the reaction of NH3 with CuO to produce N2 it is impossible to determine the mass of N2 that can be formed from the reactants provided.
Step-by-step explanation:
The question involves determining the mass of N2 that can be formed when 10.8g of NH3 are reacted with 32.5g of CuO. This is a stoichiometry problem in chemistry which involves using a balanced chemical equation to find the mole ratio between reactants and products, and thus determine how much product can be formed from a given amount of reactant.
However, the provided information is not directly relevant to the question as-written because it does not provide the specific reaction between NH3 and CuO that would produce N2, nor the stoichiometry for this reaction. Therefore, without the specific balanced chemical equation, it's impossible to accurately determine the mass of N2 that can be formed from the given amount of NH3 and CuO.