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a 25.0 ml sample of 0.100 m hbr solution is titrated with 0.050 m naoh solution. what is the ph after 25.0 ml of the naoh solution have been added? a 25.0 ml sample of 0.100 m hbr solution is titrated with 0.050 m naoh solution. what is the ph after 25.0 ml of the naoh solution have been added? 1.00 1.60 7.00 12.70 1.30