17. A 0.5341 g sample of alkali containing 92% NaOH and 8% indifferent impurities was dissolved and brought to the mark in a 100.0 ml volumetric flask. Determine the molar concentration of the hydrochloric acid solution, T(HCl) and T(HCl/NaOH), if 19.50 ml of acid were used to titrate 15.00 ml of NaOH solution.

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