31. Solution to Chemistry Problem
Seller: Derkach
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- A 1.983 g sample of a pigment containing PbCrO4 was dissolved in acid in a 200.0 ml volumetric flask. 15.00 ml of a 15.00% potassium iodide solution was added to a 25.00 aliquot of the resulting solution. Calculate the mass fraction of lead in the pigment if 11.96 ml of a Na2S2O3 solution with a titer of 0.001716 g/ml was used to titrate the released iodine.
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