Answer:To determine the number of moles present in 14.4 g of lead, you can follow these steps:
1. Find the molar mass of lead (Pb) from the periodic table. The molar mass of lead is approximately 207.2 g/mol.
2. Use the formula to calculate the number of moles:
Number of moles = Mass (in grams) / Molar mass
3. Substitute the given mass of lead into the formula:
Number of moles = 14.4 g / 207.2 g/mol ≈ 0.0694 moles
Therefore, there are approximately 0.0694 moles of lead present in 14.4 grams of lead.
Explanation: