Final answer:
In a sample that contains 1.15 moles of dinitrogen monoxide, there are 2.30 moles of nitrogen atoms since each molecule of dinitrogen monoxide contains two nitrogen atoms.
Step-by-step explanation:
The student has asked how many moles of nitrogen atoms are present in a sample that contains 1.15 moles of dinitrogen monoxide. Dinitrogen monoxide has the chemical formula N2O, meaning each molecule contains two nitrogen atoms (N). Therefore, to find the number of moles of nitrogen atoms, you would multiply the number of moles of dinitrogen monoxide by 2, since there are two nitrogen atoms for every molecule of N2O.
To calculate: 1.15 moles of N2O × 2 moles of N per mole of N2O = 2.30 moles of nitrogen atoms.