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.
Totally different things. And speaking of the metric system. Another question often asked is why does 1 cup of flour weigh 130 grams while 1 cup of granulated white sugar weighs 200 grams, when they are both 1 cup measurements? The answer is easily explained when you think about 1 cup of feathers and 1 cup of rocks.s you've probably noticed, all the recipes on joyofbaking.com give both volume and weight measurements. For example if a recipe calls for all purpose flour, it is written 1 cup (130 grams) all purpose flour.