# Limiting Reactant—Text Version - Limiting Reactant—Text...

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6 cups sugar × = 4 batches of cookies 4 teaspoons vanilla × = 8 batches of cookies 9 cups flour × = 3 batches of cookies 5 teaspoons baking soda × = 5 batches of cookies 8 teaspoons salt × = 16 batches of cookies Even though the other ingredients can make more cookies, the flour runs out after making three batches. This means that flour is the first ingredient to run out, and it limits Donnie to making only three batches of cookies. He’s going to need to stash some of those cookies away for himself before his family and friends come in and start snacking! As you can see, you can apply the same skills that you have already seen with mole ratios and stoichiometry to solve problems that involve a given amount of more than one ingredient or reactant. All the stoichiometry problems that you have seen so far involved calculations where you solved for the amount of a substance that will react with, or be produced from, a given amount of another substance. However, in reality reactions are rarely carried out with the precise amounts of reactants required to react completely.

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