Solutions of iron (III) chloride, FeCl3, are used in photoengraving and to make ink. This compound can be made by the following reaction: 2Fe + 3Cl2 --> 2FeCl3
a) How many grams of Fe are needed to combine with 4.5 moles of Cl2?
b) If 240 g of Fe is to be used in this reaction, with adequate Cl2, how many moles of FeCl3 will be produced?