A lead fishing weight cotains 0.12 mol of lead atoms. What is its mass?

.12 * 207 grams

To calculate the mass of the lead fishing weight, we need to know the molar mass of lead. The molar mass is the mass of one mole of a substance, and it is expressed in grams/mole.

The molar mass of lead (Pb) can be found on the periodic table, which is approximately 207.2 grams/mole.

To find the mass of the lead fishing weight, we can use the formula:

Mass = Number of moles x Molar mass

Given that the lead fishing weight contains 0.12 mol of lead atoms, we can calculate the mass as follows:

Mass = 0.12 mol x 207.2 grams/mole

Now we can solve for the mass:

Mass = 24.864 grams

Therefore, the mass of the lead fishing weight is approximately 24.864 grams.