Experiment 2 pH Determination of pKa and Equivalent Weight.

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Presentation transcript:

Experiment 2 pH Determination of pKa and Equivalent Weight

Goals Perform ________________ titration Use titration data to _______________ Use ___________ to determine ______ Use data to determine ______________________ Use results to determine _________________________

The Titration ACID BASE

The Analysis 24pKa = pH at Vep/2 = 24/2=12

First Derivative Method

Equivalence Weight Eq. Wt. = For a monoprotic acid, it will be ________ _________________________ For a diprotic acid, it will be ___________ __________________________________

Possible Unknowns NaHSO 4 KHP – Potassium hydrogen phthalate KHSO 4