titrationlab - Using Acid Base Titration To Find Molarity,...

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Using Acid – Base Titration To Find Molarity, The End Point, And The Equivalence Point Of An Unknown In Order To Explore Acid – Base Chemistry And Its Applications Trevor Nestor Period 2 C.P. Chemistry June 1, 2009 Santa Susana High School 1
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Introduction In this investigation, the molarity, the end point, and the equivalence point will be found for an unknown. Molarity is simply the concentration of solute in a solution expressed in number of moles solute per liter of solution. The end point of an acid or base is the point at which during titration, an indicator changes color completely and does not change back. The equivalence point of an acid or base is similar to its end point. The end point describes an observable event, while the equivalence point describes the actual point at which the “amount of base is chemically equivalent to the acid” (Swenson et al, 2007). Acid – base titration is a basic method used to find the concentration of an unknown acid or base, and is commonly used in the liquor and drug industries to analyze products before they are sold (Rushin et al, 2009). The technique of acid – base titration will be used to determine unknown values. During titration, either an acid or a base with a known concentration (known as “the standard”) is used to offset an unknown. The end point is found, as described earlier, by adding an indicator to the unknown. The end point is used as a rough estimate of the equivalence point. The equivalence point is found by
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titrationlab - Using Acid Base Titration To Find Molarity,...

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