How many moles are present in 3.01 × 10^{22} atoms of magnesium (Mg)?

• A. 5.00 mol
• B. 0.0500 mol
• C. 0.00500 mol
• D. 0.500 mol

Answer: (B)

Verified step by step guidance

1. Identify the given quantity: 3.01 \times 10^{22} atoms of magnesium (Mg).
2. Recall that 1 mole of any substance contains Avogadro's number of particles, which is approximately 6.022 \times 10^{23} atoms/mol.
3. Set up the conversion from atoms to moles using the relationship: \(\text{moles} = \frac{\text{number of atoms}}{\text{Avogadro's number}}\).
4. Substitute the given values into the formula: \(\text{moles} = \frac{3.01 \times 10^{22}}{6.022 \times 10^{23}}\).
5. Perform the division to find the number of moles of magnesium atoms present.