How many atoms are present in 1.50 moles of Hg?

• A. 6.02 × 10^{23} atoms
• B. 9.03 × 10^{23} atoms
• C. 3.01 × 10^{23} atoms
• D. 1.50 × 10^{24} atoms

Answer: (B)

Verified step by step guidance

1. Identify the quantity given: 1.50 moles of Hg (mercury atoms).
2. Recall Avogadro's number, which is the number of atoms in one mole of any substance: \$6.02 \times 10^{23}$ atoms/mole.
3. Set up the calculation to find the total number of atoms by multiplying the number of moles by Avogadro's number: \(\text{Number of atoms} = 1.50 \text{ moles} \times 6.02 \times 10^{23} \text{ atoms/mole}\).
4. Perform the multiplication of the numerical coefficients (1.50 and 6.02) and add the exponents of 10 if necessary, keeping track of significant figures.
5. Express the final answer in scientific notation to represent the total number of atoms in 1.50 moles of Hg.