How many atoms of carbon are present in 0.68 moles of carbon?

• A. 2.04 × 10^{23} atoms
• B. 4.09 × 10^{23} atoms
• C. 1.13 × 10^{24} atoms
• D. 6.02 × 10^{23} atoms

Answer: (B)

Verified step by step guidance

1. Identify the quantity given: 0.68 moles of carbon atoms.
2. Recall that one mole of any substance contains Avogadro's number of particles (atoms, molecules, etc.), which is \$6.02 \times 10^{23}$ particles per mole.
3. Set up the calculation to find the number of atoms by multiplying the number of moles by Avogadro's number: \(\text{Number of atoms} = 0.68 \text{ moles} \times 6.02 \times 10^{23} \text{ atoms/mole}\).
4. Perform the multiplication of the numerical values and combine the powers of ten accordingly to get the total number of atoms.
5. Express the final answer in scientific notation to match the format of the given options.