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Why potassium hydrogen pthalate is used for perchloric acid
And naoh. Why it is used for both acid and base

Answer Posted / mahesh.duggirala

accually PHP nature is acidic(pH:4.5)..so we use for
standerdization of NaOH.but in HClO4,we standedize in
presence of Acetic acid..Acetic acid & PHP combined to form
conjugate base.that conjugate base react with HCLO4
solution..in HCLO4 standerdization

Is This Answer Correct ?    11 Yes 8 No



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