9. Solving a chemistry problem
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183. A portion of 2.8530 g of chloride salt was dissolved in a volumetric flask with a capacity of 250 cm3. For titration of 20 cm3 of the solution, 19.95 cm3 of a 0.1 N solution of Hg(NO3)2 was used. Calculate the percentage of chlorine in the sample.
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