Verified Answer :

1.       Fe2O3 or Iron (III)
oxide is an organic compound. It contains 3 main oxides of Iron, the iron (II)
oxide (FeO) and the iron (II, III) oxide (Fe3O4).


Now, let’s find the number of Molecules are there in 79g of Fe203:

The number of Atoms are there:


Molar Mass of Fe2O3 = 160g / mol.

=> 160g  of Fe2O3  = 6.02 x 1023 Molecules

=> 79g of Fe2O3 = x

Next, find the value of X, in where:

x = (6.02 x 1023 x 79g) / 160g is approximately

x = 2.97 x 1023 molecules.