A solution of lodine was standardized using 225 mg of arsenic trioxide (197.94 g/n) in which the primary standard consumed 4.57 ml of the solution. 200 mg of potassium dichromate (294.19 g/n) was also used in the standardization of sodium thiosulfate in which 4.12 of titrant was consumed. These two standard solutions were used in the assay of 0.95-g sample of sodium bisulfite. 50 ml of the iodine solution was added first and the excess iodine was titrated using 32.33 ml of sodium thiosulfate. Calculate the N of the iodine solution. Round off answers to four decimal places.

Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter4: Types Of Chemical Reactions And Solution Stoichiometry
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Question 6
A solution of lodine was standardized
using 225 mg of arsenic trioxide
(197.94 g/n) in which the primary
standard consumed 4.57 ml of the
solution. 200 mg of potassium
dichromate (294.19 g/n) was also used
in the standardization of sodium
thiosulfate in which 4.12 of titrant was
consumed. These two standard
solutions were used in the assay of
0.95-g sample of sodium bisulfite. 50 ml
of the iodine solution was added first
and the excess iodine was titrated using
32.33 ml of sodium thiosulfate.
Calculate the N of the iodine solution.
Round off answers to four decimal
places.
Transcribed Image Text:Question 6 A solution of lodine was standardized using 225 mg of arsenic trioxide (197.94 g/n) in which the primary standard consumed 4.57 ml of the solution. 200 mg of potassium dichromate (294.19 g/n) was also used in the standardization of sodium thiosulfate in which 4.12 of titrant was consumed. These two standard solutions were used in the assay of 0.95-g sample of sodium bisulfite. 50 ml of the iodine solution was added first and the excess iodine was titrated using 32.33 ml of sodium thiosulfate. Calculate the N of the iodine solution. Round off answers to four decimal places.
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