Consider a hypothetical diprotic acid (H2A) with pKa1 = 7.301 and pKa2 = 10.00. A 40.0-mL sample of a 0.050 0 M solution of the disodium salt of this acid (Na2A) is titrated with 0.100 M HCl. a) Calculate the pH at 5.00-mL intervals of titrant added from 0 to 50 mL. b) Sketch the titration curve. c) What would be an ideal pKa for an indicator to use in this titration?

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Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.