How many atoms are present in 1.50 moles of fluorine gas (F_2)?

• A. 1.81 × 10^{24} atoms
• B. 9.03 × 10^{23} atoms
• C. 3.61 × 10^{24} atoms
• D. 1.81 × 10^{24} molecules

Answer: (C)

Verified step by step guidance

1. Identify that fluorine gas (F_2) is diatomic, meaning each molecule contains 2 atoms of fluorine.
2. Recall that 1 mole of any substance contains Avogadro's number of entities, which is \$6.022 \times 10^{23}$ entities per mole.
3. Calculate the number of molecules in 1.50 moles of F_2 by multiplying the moles by Avogadro's number: \$1.50 \text{ moles} \times 6.022 \times 10^{23} \text{ molecules/mole}$.
4. Since each molecule contains 2 atoms, multiply the number of molecules by 2 to find the total number of atoms: \(\text{number of molecules} \times 2\).
5. Express the final answer in scientific notation to match the format of the options given.