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[100mL" of "0.02M" benzoic acid "(pK(a)=...

[100mL" of "0.02M" benzoic acid "(pK_(a)=4.20)" is titrated using "0.02M" NaOH,pH after "50mL" and "],[100mL" of "NaOH" have been added are: "],[[" (a) "3.50,7," (b) "4.2,7," (c) "4.2,8.1," (d) "4.2,8.25]]

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