Nomenclature of Some Special Cations. I. Cations that do not require Roman numerals: Previously you had learned that elements in Groups IA and IIA, and aluminum form cations of a. fixed charge. You are now going to add on to this list, a few more ions in the transition metals that. also do not require a fixed charge because they generally form only ions with charges as shown. below:
Take an example, if a recipe calls for 350 grams of plain flour, then you refer to a conversion table saying it's about 2.5 cups.
The conversion is different for each ingredient! Here are a few common foods and their conversion from cups to grams (notice how much the weight varies!): Granulated sugar: 1 cup = 200 grams. Brown sugar: 1 cup, packed = 220 grams. Sifted white flour: 1 cup = 125 grams.