A current of 10 amps passes for an hour through a solution of sodium chloride with a volume of 1L by poles of pt,calculate the pH of the solution after the electrolysis is finished.

If a sodium chloride aqueous solution is electrolyzed with a selected current (10 amps in this case), only Water will undergo oxidation and reduction and pH will = 7. Also, neither Na^+ nor Cl^- will hydrolyze in water and the pH will be exclusively upon auto ionization of water => pH = 7.

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