How many carbon atoms are present in 1 mole of carbon?

• A. 6.022 × 10^{23}
• B. 1.00 × 10^{6}
• C. 3.01 × 10^{23}
• D. 12.01 × 10^{23}

Answer: (A)

Verified step by step guidance

1. Understand that 1 mole of any substance contains Avogadro's number of entities (atoms, molecules, etc.). Avogadro's number is approximately \$6.022 \times 10^{23}$ entities per mole.
2. Recognize that the problem asks for the number of carbon atoms in 1 mole of carbon, so the entities we are counting are carbon atoms.
3. Recall the definition of a mole: 1 mole of carbon atoms contains exactly \$6.022 \times 10^{23}$ carbon atoms.
4. Note that the atomic mass of carbon (12.01 g/mol) is not directly needed to find the number of atoms; it is used to relate mass to moles, but here the amount is already given in moles.
5. Conclude that the number of carbon atoms in 1 mole of carbon is equal to Avogadro's number, \$6.022 \times 10^{23}$ atoms.