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2. Exactly 4.00 grams of a solution of sulfuric acid was diluted with water, and an excess of barium. chloride was added. A precipitate of barium sulfate formed. This precipitate was washed, dried, and weighed. The weight of the barium sulfate was 4.08 grams. What was the percent by weight . of sulfuric acid in the original acid solution. (A ... ................
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