Question

PLEASE HELP THOSE WHO ARE CHEMISTS!! How many molecules are there in 79g of Fe2O3? How many atoms is this?

Answer 1

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.