determine the pH of the solution resulting when 100cm^3 of 0.50mol dm^-3 hydrochloric acid is mixed with 200cm^3 of 0.1mol…

determine the pH of the solution resulting when 100cm^3 of 0.50mol dm^-3 hydrochloric acid is mixed with 200cm^3 of 0.1mol dm^-3 NaOH