The following pH curve is for the titration of 20.0 mL of a 0.10 M solution of a weak monoprotic acid with a 0.10 M solution of a strong monoprotic base. Data points at 1 mL increments. (a) What is the pH before any titrant has been added? (b) What is the pH at the midpoint of the titration? (c) What is the pH at the equivalence point? (d) What is the value of K, for the weak acid? 14.0 12.0 10.0 E 8.0 6.0 4.0 2.0 0.0 „¶¶¶¶¶¶¶000000 0.0 10.0 20.0 AAAAAAAAAAAAAAAAAA 30.0 Volume of titrant (mL) 40.0 50.0

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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.