68 Решение задачки по химии №06 836

11. What is the concentration (g / l) of Pb2 ions in the solution, if after adding 20.00 cm3 of 0.01 M solution of Trilon B to 10.00 cm3 of this solution, 6.01 cm3 of 0.015 M solution of zinc sulfate was used to titrate the excess of the latter.

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