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Chemistry, 28.11.2019 22:31 leannadoughty06
A3.452 g sample containing an unknown amount of a ce(iv) salt is dissolved in 250.0-ml of 1 m h2so4. a 25.00 ml aliquot is analyzed by adding ki and titrating the i3– that forms with s2o32–. the end point was reached following the addition of 13.02 ml of 0.03428 m na2s2o3. calculate the weight percent of ce4 in the sample. when should the indicator be added to this titration? (at the beginning or just before the end point? )
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A3.452 g sample containing an unknown amount of a ce(iv) salt is dissolved in 250.0-ml of 1 m h2so4....
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