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Sulfate can be determined by precipitating barium sulfate with excess barium ion and titrating the excess...

Sulfate can be determined by precipitating barium sulfate with excess barium ion and titrating the excess with EDTA. A 0.4326g sample containing sulfate is dissolved, then precipitated by adding 50.00ml of 0.03150 M BaCl2. After removal of the BaSO4 by filtration, the excess Ba2+ was titrated with 26.38ml of 0.01822M EDTA. Calculate the percentage of SO4 in the sample.
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