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A 30.00 mL sample of a solution containing nitrous acid (HNO2) is titrated with 2.000 102 mol L- NaOH(aq). The equivalence point is reached

A 30.00 mL sample of a solution containing nitrous acid (HNO2) is titrated with 2.000 102 mol L- NaOH(aq). The equivalence point is reached when 8.30 mL of NaOH(aq) solution is added. What is the pH at the equivalence point?

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