1. Find the molar mass of lead:
* The molar mass of lead (Pb) is approximately 207.2 g/mol.
2. Calculate the number of moles:
* Divide the mass of lead (10 g) by the molar mass (207.2 g/mol):
10 g / 207.2 g/mol = 0.048 moles
3. Use Avogadro's number:
* Avogadro's number states that there are 6.022 x 10^23 atoms in one mole of any substance.
* Multiply the number of moles (0.048 moles) by Avogadro's number:
0.048 moles * 6.022 x 10^23 atoms/mol = 2.89 x 10^22 atoms
Therefore, there are approximately 2.89 x 10^22 atoms in 10 grams of lead.
