30. Решение задачки по химии №20

38. What mass of NH4Cl containing about 30% NH3 was taken for analysis if, after adding 50.00 ml of 0.1000 M NaOH to it and heating until the ammonia was completely removed, the excess NaOH was titrated with 25.00 ml of 0.1000 M HCl?

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