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Unformatted text preview: mary standard solution. Now, we will examine the volumes of titrant and sodium
thiosulfate used in each trial. Your titration volumes of the sodium thiosulfate solution
should be approximately 20 - 30 mL. For each trial, enter the precise volume in mL of
sodium thiosulfate solution used in the titration of your potassium iodate solution
(e.g. 20.34 mL).
Using the volumes of sodium thiosulfate solution you just entered and the molarity of the
potassium iodate primary standard solution, calculate the molarity of the sodium
thiosulfate secondary standard solution for each trial. Enter your calculated molarity of
the sodium thiosulfate solution for each of the trials. Be sure to enter your calculated
molarities in the corresponding order that you entered your sodium thiosulfate volumes
previously. The sodium thiosulfate volume you entered for entry #1 above should
correspond to the sodium thiosulfate molarity that you enter for entry #1 here. Use three
The molarity of the sodium thiosulfate solution is taken as the avera...
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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