How many particles are present in one mole of a substance?

• A. 1.00 × 10^{6}
• B. 3.01 × 10^{23}
• C. 6.022 × 10^{22}
• D. 6.022 × 10^{23}

Answer: (D)

Verified step by step guidance

1. Understand that one mole of any substance contains a specific number of particles (atoms, molecules, ions, etc.), which is a fundamental constant in chemistry known as Avogadro's number.
2. Recall the value of Avogadro's number, which is approximately \$6.022 \times 10^{23}$ particles per mole.
3. Recognize that this number represents the quantity of particles in exactly one mole of a substance, regardless of the type of particle.
4. Compare the given options to Avogadro's number to identify the correct choice.
5. Conclude that the number of particles in one mole of a substance is \$6.022 \times 10^{23}$, which matches the correct answer.