1. When titrating 100 ml of CH3COOH solution with 0.5 N NaOH solution, the following results were obtained:
VNaOH, cm3 8.0 9.0 10.0 11.0 12.0 13.0
R, Ohm 75.0 68.1 62.3 57.0 53.2 50.8
Determine the molar concentration of the equivalent of CH3COOH solution

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