The precipitate is filtrated washed and re-dissolved in acid

Reference no: EM13163871

The lead contained in a 0.2000 g sample is precipitated as PbCrO4. The precipitate is filtrated, washed and re-dissolved in acid to give lead ions and dichromate. 15.00 mL of 0.100 M FeSO4 is required to titrate the dichromate to the end point. Calculate the percentage of lead in the original sample.

Reference no: EM13163871

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