How many moles of Cu are present in 1.48 × 10^{25} Cu atoms?

• A. 2.46 moles
• B. 246 moles
• C. 0.246 moles
• D. 24.6 moles

Answer: (D)

Verified step by step guidance

1. Identify the given quantity: the number of copper (Cu) atoms is \$1.48 \times 10^{25}$ atoms.
2. Recall Avogadro's number, which is the number of atoms in one mole of any substance: \$6.022 \times 10^{23}$ atoms/mole.
3. Set up the conversion from atoms to moles using the relationship: \(\text{moles of Cu} = \frac{\text{number of Cu atoms}}{\text{Avogadro's number}}\).
4. Substitute the given values into the formula: \(\text{moles of Cu} = \frac{1.48 \times 10^{25}}{6.022 \times 10^{23}}\).
5. Perform the division to find the number of moles of Cu atoms present.