Final answer:
There are approximately 1.94 moles of nitrogen in 89.0g of nitrous oxide.
Step-by-step explanation:
The molar mass of nitrous oxide, N₂O, is the sum of the molar masses of nitrogen and oxygen. The molar mass of nitrogen is 14.01 g/mol, and the molar mass of oxygen is 16.00 g/mol. So the molar mass of N₂O is 14.01 + (2 * 16.00) = 46.01 g/mol.
To find out how many moles of nitrogen are in 89.0g of nitrous oxide, we can use the molar mass of N₂O. We divide the given mass by the molar mass: 89.0g / 46.01 g/mol = 1.94 mol.
Therefore, there are approximately 1.94 moles of nitrogen in 89.0g of nitrous oxide.