12. During conductometric titration of 50.0 ml of a solution containing NaOH and NH4OH with a 0.0100 M HCl solution, the following data were obtained:
Option 3
V(HCl), ml 0 1 2 3 4 5 6 7 8 9 10
ᴂ*103, cm 6.60 5.93 5.30 4.68 4.05 - 4.45 5.70 7.80 12.02 16.20
Construct a titration curve and determine equivalence points and calculate the concentration of NaOH and NH4OH in the test solution g/l.

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