81 Решение задачки по химии №08 185

1. To determine sulfate ions in brine, 10.00 ml of the sample was treated with 40.00 ml of 0.2023 M BaCl2 and the solution was diluted in a 200.0 ml volumetric flask (the precipitate was filtered off). For titration of 25.00 ml of the filtrate, 9.14 ml of 0.1 M EDTA was used (K=1.032). Calculate the concentration (g/l) of sulfate ions in the studied brine.

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