Final answer:
One mole of nitrous oxide (N2O) contains two moles of nitrogen, as the compound consists of two nitrogen atoms bonded to one oxygen atom.
Step-by-step explanation:
The question "how many moles of nitrogen in nitrous oxide" refers to the calculation of the moles of nitrogen present in a given amount of nitrous oxide (N2O). Nitrous oxide, also known as dinitrogen oxide, is a chemical compound consisting of two nitrogen atoms and one oxygen atom. The molecular weight of nitrous oxide (N2O) is 44.02 grams per mole, and since there are two nitrogen atoms in each molecule of N2O, one mole of N2O contains two moles of nitrogen. Therefore, in one mole of nitrous oxide, there would be two moles of nitrogen.