50. Solving a chemistry problem

50. Solving a chemistry problem

4. Determine the concentration of NH4Cl (in grams per milliliter) in the solution, if the following results were obtained during potentiometric titration of 20.0 ml of this solution with a 0.05 N solution of Hg(NO3)2:
V Hg(NO3)2, ml 10.0 18.0 17.0 17.5 17.9 18.0 18.1 18.5 19.0
E, mV 382 411 442 457 498 613 679 700 711

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