What is the total number of atoms present in 1.0 mole of CO_2?

• A. 6.022 × 10^{23} atoms
• B. 2.0 × 6.022 × 10^{23} atoms
• C. 3.0 × 6.022 × 10^{23} atoms
• D. 1.0 × 6.022 × 10^{23} atoms

Answer: (C)

Verified step by step guidance

1. Identify the molecular formula of carbon dioxide, which is \(\mathrm{CO_2}\). This means each molecule contains 1 carbon atom and 2 oxygen atoms.
2. Calculate the total number of atoms in one molecule of \(\mathrm{CO_2}\) by adding the atoms: \$1 + 2 = 3$ atoms per molecule.
3. Recall that 1 mole of any substance contains Avogadro's number of molecules, which is \$6.022 \times 10^{23}$ molecules.
4. To find the total number of atoms in 1 mole of \(\mathrm{CO_2}\), multiply the number of atoms per molecule by Avogadro's number: \$3 \times 6.022 \times 10^{23}$ atoms.
5. Express the final answer as the total number of atoms in 1 mole of \(\mathrm{CO_2}\), which is \$3.0 \times 6.022 \times 10^{23}$ atoms.