If the mass of isolated Fe2O3 were .300 g, what is the average mass of iron per tablet?

To find the average mass of iron per tablet, we need to know the chemical formula and molecular weight of Fe2O3 (iron(III) oxide), as well as the mass of isolated Fe2O3 and the number of tablets. However, you haven't provided the number of tablets in your question, so we can't calculate the average mass of iron per tablet without that information. Could you please provide the number of tablets?