Question

What is the number of moles of oxygen atoms in 4.0 g of \( \text{O}_2 \)?

• A. \( 0.125 \, \text{mol} \)
• B. \( 0.25 \, \text{mol} \)
• C. \( 0.5 \, \text{mol} \)
• D. \( 0.1 \, \text{mol} \)

Hint:

To find the number of moles of atoms in a molecular compound, multiply the moles of the compound by the number of atoms per molecule.