1. An aqueous solution of weak base B of unknown concentration is tritrated with a known concentration of strong acid, HA.
(a) Write the balanced chemical equation for this acid-base reaction, identifying the conjugate acid/base pairs.
(b) If the base-dissociation constant of B is 1 × 10^3, what is the pH at the midpoint of the buffer region? What are the chemical components of the buffer?
(c) Write the balanced chemical equation for the weak acid dissociation in water occurring at the equivalence point.
(d) At the equivalence point, 500mL of 0.2 M HA(aq) was added to 500mL of the original B(aq) solution. What is the pH at the equivalence point?
(e) Sketch the titration curve, labeling all axes, the bu?er region, and equivalence point, along with corresponding pH values.