H3PO4 적정 pH 계산

H3PO4 적정 pH 계산

H3PO4 titration pH calculation

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[Titrations of Polyprotic Acids or Bases]

A titration of the triprotic acid H3PO4 with NaOH

is illustrated in Figure 17.4.5 and

shows two well-defined steps:

the first midpoint corresponds to pKa1, and

the second midpoint corresponds to pKa2.

Because HPO4^2- is such a weak acid,

pKa3 has such a high value that

the third step cannot be resolved

using 0.100 M NaOH as the titrant.

[ https://chem.libretexts.org/Bookshelves/General_Chemistry/Map%3A_A_Molecular_Approach_%28Tro%29/17%3A_Aqueous_Ionic_Equilibrium/17.04%3A_Titrations_and_pH_Curves ]

[키워드] H3PO4 + NaOH 적정 기준, H3PO4 + KOH 적정 기준, 인산 적정 pH 계산 기준