182. Determine the mass-volume fraction (%) of sodium chloride in an isotonic solution, 20.00 cm3 of which was placed in a volumetric flask with a capacity of 100.00 cm3. For titration of 10.00 cm3 of the resulting solution, 6.35 cm3 of 0.05 N AgNO3 solution (K=1.004) was used.

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