1. The electrical conductivity of a 0.05 M solution of acetic acid is 3.24×10-4, 0.0001 M solution of CH3COONa −7.75×10-6 Ohm-1•cm-1. Mobilities of hydrogen and sodium ions are 314.9 and 43.5 Ohm-1•cm2/mol, respectively. Calculate the dissociation constant of acetic acid assuming the salt is completely dissociated.

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