In: Chemistry
A 0.1358-g portion of potassium iodate (MW 214.00), about 2 g of
potassium
iodide, and 2 mL of 6 M hydrochloric acid were dissolved in 25 mL
of distilled
water. The triiodide formed during the ensuring reaction was
titrated to the
starch end point with 31.94 mL of a thiosulfate solution. A
25.00-mL triiodide
sample solution was titrated to the end point with 21.33 mL of the
standardized
thiosulfate solution. Calculate the concentrations of the
thiosulfate solution and
the triiodide solution.