1. A) We can see from the equation that, one mole Fe(111)Oxide gives 2 mole Fe
One mole = weight (g)/ mol weight(g/mole)
=> Weight of one mole Fe2O3 = 160 *1 g = 160g
=> 160g Fe2O3 gives 2*56g Fe
=> 1g Fe2O3 gives 2*56/160 g Fe
or, 454g of Fe2O3 gives 2*56*454/160 = 317.8 g of Fe ...
The solution is comprised of a detailed and easy to follow explanation of how to complete the calculations for each part of the question. All the steps required to calculate the mass and the molar mass values you need to carry-out the questions are included in the response.