Question

Which of the following contains the most moles of atoms?

A) 1 mole of oxygen (O₂)
B) 2 moles of helium (He)
C) 3 moles of nitrogen (N₂)
D) 4 moles of carbon dioxide (CO₂)

Answer 1

Option D, 4 moles of carbon dioxide (CO₂), contains the most moles of atoms, totaling 12 moles of atoms when considering the number of atoms in each molecule.

Step-by-step explanation:

To determine which option contains the most moles of atoms, we need to consider the number of atoms present in each molecule and multiply that by the number of moles provided for each substance.

• A) 1 mole of oxygen (O₂) means 2 atoms per molecule × 1 mole = 2 moles of atoms.
• B) 2 moles of helium (He) are monoatomic, so 1 atom per molecule × 2 moles = 2 moles of atoms.
• C) 3 moles of nitrogen (N₂) means 2 atoms per molecule × 3 moles = 6 moles of atoms.
• D) 4 moles of carbon dioxide (CO₂) means 3 atoms per molecule (1 carbon and 2 oxygen) × 4 moles = 12 moles of atoms.

Therefore, option D, 4 moles of carbon dioxide (CO₂), contains the most moles of atoms.