How many iron atoms would be produced by 4.5g of fe2o3 reacting eith an excess of magnesium

Answer :  

Explanation : Given,

Mass of = 4.5 g

Molar mass of = 159.69 g/mole

Molar mass of Fe = 56 g/mole

First we have to calculate the moles of .

Now we have to calculate the moles of Fe.

The balanced chemical reaction will be,

From the balanced reaction we conclude that

As, 1 moles of react to give 2 moles of

So, 0.028 moles of react with moles of

Now we have to calculate the mass of Fe.

Therefore, the number of atoms will be