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pH=pKapH = pK_apH=pKa
[HA]=[A−][HA] = [A^-][HA]=[A−]
Ka=[H+]=10−extpHK_a = [H^+] = 10^{- ext{pH}}Ka=[H+]=10−extpH
25.0 cm³
Colourless to pink
Use half the volume of NaOH used to reach equivalence
pH 4.00, 7.00, and 10.00
4.75
1.8×10−51.8 \times 10^{-5}1.8×10−5 mol dm⁻³
Around 10−510^{-5}10−5 mol dm⁻³
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