91. Solving a chemistry problem

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For the analysis of H2SO4 in solution, a sample of 0.5080 g was taken. After treatment of the solution, 1.1670 g of BaSO4 precipitate was obtained, for which 50.0 ml of 0.2 N BaCl2 solution was taken. Determine % H2SO4 in a sample
1) from the mass of the resulting sediment;
2) from the volume of the BaCl2 solution.

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