2NH3 + 3CuO ---> 3Cu + 3H2O + N2

If a sample of 51.0g of ammonia was reacted with excess copper oxide, how many moles of nitrogen would be produced?

moles N2 gas

Rounded to 3 significant figures

Please do not respond to this giving me your best guess or an estimation, or a random number. If you don't know how to do it, that's fine bc I don't either. But pleasE lol
I need to know the real answer, if you don't know how to find it please don't answer, thanks.

Note - 2 moles of ammonia are required to form 1 mole of nitrogen

Thanks

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