3.0 g of a sample of blue vitriol were dissolved in H2O. BaCl2 solutio – InterviewSolution

1.	3.0 g of a sample of blue vitriol were dissolved in H2O. BaCl2 solution was mixed in excess to this solution. The precipitate obtained was washed and dried to 2.8 g. Determine the % of SO4 radical.
Answer» Correct answer is 38.4%

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