You might notice that this documentary chart is slightly different from the one we learned about in stoichiometry. In stoichiometry, we're accustomed to getting only one given amount for reactant within our chemical reaction. Sometimes we wouldn't even mention the other reactant. Now we're going to have chemical equations with reactants, and more than one of them will have a given amount.

So what we're going to have to do is we're going to have to do stoichiometry for each reactant. So for reactant 1, we're going to take its amount and that amount might be in grams. So we'll have grams of given for it. Convert those grams of given to moles of given. We know that we'd have to do the jump to get to moles of unknown and to do that we'd have to use a coefficients from the balance equation. Those moles of unknown, we can convert them into ions, atoms, formula units, molecules or grams.

We get our answer for that amount of product or unknown. Then we'd have to do it again for reacting 2. Go through the whole process and find out how much of our unknown we have. So from those amounts that we decide, we've calculated, we can determine which one of these reactants is the limiting reagent and which one is the excess reagent. We can also determine from the limiting reagent what the theoretical yield is. It's just double the work to help us find out how much product we're going to make.

So click on to the next video and let's take a look at example question where we put to practice this new idea of our stoichiometric chart.