Are Form 8655 Determinations 2024

In this video, we're going to talk about the limiting reactant, which can also be called the limiting reagent. But before we delve into chemistry, let's start with some cooking analogies. We'll compare a chemical reaction to a cooking recipe, specifically making cheeseburgers. To make a cheeseburger, we need a bun, a slice of cheese, and a piece of meat. Similar to reactants in a chemical reaction, these are the ingredients we start with, and the cheeseburger is the product we end up with. Now, let's say we have different quantities of each ingredient. This is common in both cooking and chemical reactions. We're interested in determining the maximum number of cheeseburgers we can make. For example, we have four buns, nine slices of cheese, but only three pieces of meat. In this case, we can only make three cheeseburgers because we run out of meat. The meat, in this scenario, is the limiting reactant. It is the reactant that gets used up first in a reaction. Once the limiting reactant is completely used up, no more product can be formed, and the reaction stops. The term "limiting reactant" stems from the fact that it limits the amount of product we can make. In our cheeseburger analogy, even if we have a surplus of buns or cheese, once we run out of meat, we cannot make any more cheeseburgers. The total number of cheeseburgers we can make depends entirely on the amount of meat, the limiting reactant. After the reaction stops, we might still have excess reactants left over. In our cheeseburger example, we have one excess bun and six pieces of leftover cheese. These are what we call excess reactants - reactants that are left over after the reaction stops because the limiting reactant has been completely used up. Now that we understand...