What is the total number of atoms contained in 2.00 moles of nickel (Ni)?

• A. 3.01 × 10^{23} atoms
• B. 6.02 × 10^{23} atoms
• C. 2.00 × 10^{24} atoms
• D. 1.20 × 10^{24} atoms

Answer: (D)

Verified step by step guidance

1. Understand that the problem asks for the total number of atoms in 2.00 moles of nickel (Ni). The key concept here is the mole, which relates the amount of substance to the number of particles (atoms, molecules, etc.).
2. Recall Avogadro's number, which is the number of atoms in one mole of any substance. Avogadro's number is given by \$6.02 \times 10^{23}$ atoms/mole.
3. Set up the calculation by multiplying the number of moles by Avogadro's number to find the total number of atoms: \(\text{Number of atoms} = \text{moles} \times \text{Avogadro's number}\).
4. Substitute the given values into the equation: \(\text{Number of atoms} = 2.00 \text{ moles} \times 6.02 \times 10^{23} \text{ atoms/mole}\).
5. Perform the multiplication to find the total number of atoms (do not calculate the final value here, just set up the expression). This will give you the total atoms in 2.00 moles of nickel.