What is the Molar Mass of PbI2?

The molar mass of PbI₂ (Lead(II) iodide) is calculated by adding the atomic masses of its constituent elements: lead (Pb) and iodine (I).

Here’s the breakdown:

• Lead (Pb) has an atomic mass of approximately 207.2 g/mol.
• Iodine (I) has an atomic mass of approximately 126.9 g/mol.

Since there are two iodine atoms in PbI₂, we multiply the atomic mass of iodine by 2:

126.9 g/mol × 2 = 253.8 g/mol

Now, add the atomic mass of lead to the total mass of iodine:

207.2 g/mol + 253.8 g/mol = 461.0 g/mol

Therefore, the molar mass of PbI₂ is 461.0 g/mol.