73 Решение задачки по химии №07 334

42. What mass of NaNO3 should be taken for analysis so that after reduction of NO3 - released ammonia can be absorbed by 40.0 ml of 0.1 M HCl and the excess acid is titrated with 20.0 ml of 0.1 M NaOH? Answer: 0.17. G.

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