PO 4 0005 M v Sample Calculation pK a1 value H3 O H 2 PO 4 K a H 3 O H 2 PO 4

Po 4 0005 m v sample calculation pk a1 value h3 o h 2

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pH using the curve. This pH found at the half-equivalence point is also thepKa. This was done for the first titration curve and the second curve. The second curve used the first equivalence point as the “initial” volume point when finding the half-equivalence volume. The halfway to the equivalencepoint is the point in which there is enough of the titrant to neutralize exactly half of the acid present initially. c. Discussion of Titration Accuracy References 1. Bottomley, L.; Bottomley, L.A.; CHEM 1211K/1212K, Chemical Principles I & II Laboratory Manual, 2015-2016, p. 196-205.
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  • Fall '12
  • SOPER
  • pH, Equivalence point, Sodium hydroxide, titrant

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