54. Решение задачи по химии №005 426

78. A portion of 5 g of industrial common salt was dissolved in water, the solution was diluted in a volumetric flask to 1000 ml. For titration of 20 ml of the resulting solution, 27.88 ml of a 0.05 N AgNO3 solution were used. How much NaCl (in %) is in the sample?

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