2CLabManual201303

Your titration volumes of the nbs solution should be

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Unformatted text preview: rity of the ascorbic acid primary standard solution based on the precise number of milligrams of ascorbic acid you weighed out and entered above? In the standardization of the NBS solution, using the ascorbic acid primary standard solution, we must examine each of the three acceptable trials. Your titration volumes of the NBS solution should be approximately 20 - 30 mL. For each trial, what is the precise volume in mL of NBS solution used in the titration of your ascorbic acid solution (e.g. 20.34 mL)? Using the volumes of NBS solution you just entered and the molarity of the ascorbic acid primary standard solution, calculate the molarity of the NBS secondary standard solution for each trial. What is your calculated molarity of the NBS solution for each trial? The molarity of the NBS solution is taken as the average of the three trials. What is the average? What is the standard deviation of the average molarity of the NBS solution? You were instructed to use approximately 100 mg of the Vitam...
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This note was uploaded on 04/09/2013 for the course CHE CHE 2C taught by Professor Nasiri during the Spring '07 term at UC Davis.

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