69. Solving a chemistry problem
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69. Solving a chemistry problem
5. For the titration of iodine released during the treatment of a sample of lead dioxide with potassium iodide, 24.98 cm3 of a solution of sodium thiosulfate (Na2S2O3) with a titer of 0.002501 g/cm3 was used. Calculate the weight of lead dioxide taken for analysis.
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