How many molecules are contained in 127 grams of iodine?

Answer : The number of molecules contained in 127 grams of iodine are,

Solution : Given,

Mass of iodine = 127 g

Molar mass of iodine = 126.9 g/mole

First we have to calculate the moles of iodine.

Now we have to calculate the number of molecules of iodine.

As, 1 mole of iodine contains number of molecules of iodine

So, 0.99 mole of iodine contains number of molecules of iodine

Therefore, the number of molecules contained in 127 grams of iodine are,