How many particles are present in 1 mole of a substance?

• A. 6.022 × 10^{20}
• B. 3.01 × 10^{23}
• C. 6.022 × 10^{23}
• D. 1.00 × 10^{6}

Answer: (C)

Verified step by step guidance

1. Understand that the question is asking for the number of particles in 1 mole of any substance, which is a fundamental concept in chemistry related to Avogadro's number.
2. Recall that 1 mole of a substance contains exactly Avogadro's number of particles (atoms, molecules, ions, etc.), which is a defined constant.
3. Avogadro's number is given by the value \$6.022 \times 10^{23}$ particles per mole.
4. Compare the given options to Avogadro's number and identify which matches the known constant for the number of particles in 1 mole.
5. Conclude that the correct answer is the option that equals \$6.022 \times 10^{23}$ particles, as this is the universally accepted value for the number of particles in one mole.