Final answer:
To find the number of moles of N in 0.191 g of N₂O, divide the mass by the molar mass of N₂O, which is 44.02 g/mol.
Step-by-step explanation:
To determine the number of moles of N in 0.191 g of N₂O, you need to use the molar mass of N₂O. N₂O consists of 2 nitrogen atoms (N) and 1 oxygen atom (O). The molar mass of N₂O is 44.02 g/mol. Since you have 0.191 g of N₂O, you can calculate the moles of N by dividing the mass by the molar mass:
Moles of N = Mass of N₂O / Molar mass of N₂O
Moles of N = 0.191 g / 44.02 g/mol = 0.00435 mol