How to Find Molar Mass of Iodine?

To find the molar mass of iodine (I₂), you need to know the atomic mass of a single iodine atom and then account for the fact that iodine exists as a diatomic molecule (I₂).

Here's a step-by-step guide:

1. Find the Atomic Mass of Iodine (I): Look up the atomic mass of iodine on the periodic table. It's approximately 126.90 grams per mole.

2. Consider the Diatomic Form: Iodine exists as a diatomic molecule, meaning two iodine atoms are bonded together to form I₂.

3. Calculate the Molar Mass of I₂: Multiply the atomic mass of iodine by 2 to account for the two atoms in the molecule.

   Molar Mass of I₂ = 2 Atomic Mass of I
   Molar Mass of I₂ = 2 126.90 g/mol
   Molar Mass of I₂ = 253.80 g/mol

Therefore, the molar mass of iodine (I₂) is approximately 253.80 grams per mole.