23. Solving a chemistry problem
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23. Solving a chemistry problem
15. A portion of technical NaCl weighing 2.4080 g was dissolved in a volumetric flask with a capacity of 500 ml. For titration of 25 ml of the solution, 20.35 ml of a 0.09860 mol/l AgNO3 solution were used. Calculate the mass fraction (%) of NaCl in the starting product.
a) 4.79; b) 97.49; c) 48.74.
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