下面澳际小编为大家整理了关于SAT2化学练习：Chemical Yields的介绍，希望对大家有所帮助。

　　There are three types of yields you’ll need to bamiliar with for the SAT II Chemistry test: theoreticalyields, actual yields, and percent yields. Here’s a quickreview of what all of these mean to you. Thetheoretical yield of a reaction is the amount ofproduct formed once the limiting reactant has beencompletely consumed. This assumes perfectconditions and gives a maximum amount. The actualyield is what actually occurs in the course of thereaction—how much product is actually formed. Finally, the percent yield is the ratio of theactual yield to the theoretical yield, and you can get this value using the following formula:

　　Going back to our last example, the 28,116 grams you calculated would be the theoreticalyield. But what would the percent yield be if you performed this reaction and you actuallycollected 26,450 grams of ammonia? You would calculate it using the above formula. Here it iswith the numbers plugged in:

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