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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.
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
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.
- Spring '07