119. Solving a chemistry problem
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119. Solving a chemistry problem
To standardize the sodium thiosulfate solution, a sample of KBrO3 weighing 0.1510 g was dissolved in dilute HCl, an excess of KI was added, and the released I2 was titrated using 39.7 cm3 of Na2S2O3 solution. Calculate the normality of the sodium thiosulfate solution.
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