Hydrogen peroxide can be prepared by the reaction of barium peroxide with sulfuric acid according to
BaO2 (s) + H2SO4 (aq) → BaSO4 (s) + H2O2 (aq)
How many milliliters of 3.50 M H2SO4(aq) are needed to react completely with 39.5 g of BaO2 (s)? Use the periodic table to determine the molar mass of BaO2.
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