Which of the following best describes Avogadro's number?

• A. 1.008 × 10^{2} grams per mole
• B. 3.00 × 10^{8} meters per second
• C. 6.022 × 10^{23} particles per mole
• D. 9.81 meters per second squared

Answer: (C)

Verified step by step guidance

1. Step 1: Understand that Avogadro's number is a fundamental constant in chemistry that relates the number of particles (atoms, molecules, ions, etc.) to the amount of substance in moles.
2. Step 2: Recall that Avogadro's number is defined as the number of particles in exactly one mole of a substance.
3. Step 3: Recognize that the value of Avogadro's number is approximately \$6.022 \times 10^{23}$ particles per mole.
4. Step 4: Compare the given options to identify which one matches this definition and value.
5. Step 5: Conclude that the correct description of Avogadro's number is \$6.022 \times 10^{23}$ particles per mole, as it directly relates particles to moles.