139. Solving a chemistry problem

139. Solving a chemistry problem

81. When titrating 50.0 ml of a mixture of NaOH and NH4OH with a solution of HCl with a concentration of 0.1 mol / l, the following data for problem numbers were obtained - table 23 (electrical conductivity χ • 103 cm). Plot the titration curve and calculate the concentration (g / L) of NaOH and NH3 in the test solution.

Table 23

Problem number 81
V (HCl), ml 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0
χ • 103 cm 5.7 4.5 3.2 - 3.0 3.8 4.7 5.5 7.0 10.8 14.5