50. Решение задачи по химии №005 075

Determine the content of (NH4)2SO4 in the solution, if after processing the solution 20.00 cm3 0.23 N. 8.30 cm3 of 0.10 N NaOH solution was used to titrate the excess of the latter. HCl solution. Answer: 0.2490 g.

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